Collection: Springs - Extension

1098 Products in this selection
This is a combined category of Extension Springs.
Use the filters in the table below, or the category tree above to refine the selection. To order any item, simply click the part number for a full product page, then add to your cart.
Springs - Extension
Additional resources:
Spings Catalogue PDF
Spring Anchors
A more concise listing may be found on the Smallparts store at Springs - Extension. Smallparts promote the most popular MBA products.
OD (D0) Overall Length (L0) Wire Diameter (d) Max. Extension (L1) Spring Rate Initial Tension (IT) Indicative
Image
OD (D0)
25.40
mm

(1 in.)
Overall Length (L0)
349.3
mm

(13.752 in.)
Wire Diameter (d)
3.20
mm

(0.126 in.)
Initial Tension (IT)
0.9
N
1134838 | ES-2540-3493-32-M --- Extension Springs - 25.4x349.3x3.2 mm - Music Wire
Material: Music Wire   
Category: Springs - Extension - Stainless Steel
Part Number: ES-2540-3493-32-M Extension Springs - 25.4x349.3x3.2 mm - Music Wire
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $106.41 AUD
Regular price Sale price $106.41 AUD
Each
OD (D0) Overall Length (L0) Wire Diameter (d) Max. Extension (L1) Indicative
Image
OD (D0)
25.40
mm

(1 in.)
Overall Length (L0)
349.3
mm

(13.752 in.)
Wire Diameter (d)
3.20
mm

(0.126 in.)
1134838 | ES-2540-3493-32-M --- Extension Springs - 25.4x349.3x3.2 mm - Music Wire
Material: Music Wire    Initial Tension (IT): 0.9 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-2540-3493-32-M Extension Springs - 25.4x349.3x3.2 mm - Music Wire
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $106.41 AUD
Regular price Sale price $106.41 AUD
Each
View the product page first if you are unsure.
OD (D0)
25.40
mm

(1 in.)
Overall Length (L0)
351.1
mm

(13.823 in.)
Wire Diameter (d)
2.20
mm

(0.087 in.)
Initial Tension (IT)
0.1
N
1134839 | ES-2540-3511-22-M --- Extension Springs - 25.4x351.1x2.2 mm - Music Wire
Material: Music Wire   
Category: Springs - Extension - Stainless Steel
Part Number: ES-2540-3511-22-M Extension Springs - 25.4x351.1x2.2 mm - Music Wire
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $56.68 AUD
Regular price Sale price $56.68 AUD
Each
OD (D0)
25.40
mm

(1 in.)
Overall Length (L0)
351.1
mm

(13.823 in.)
Wire Diameter (d)
2.20
mm

(0.087 in.)
1134839 | ES-2540-3511-22-M --- Extension Springs - 25.4x351.1x2.2 mm - Music Wire
Material: Music Wire    Initial Tension (IT): 0.1 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-2540-3511-22-M Extension Springs - 25.4x351.1x2.2 mm - Music Wire
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $56.68 AUD
Regular price Sale price $56.68 AUD
Each
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OD (D0)
25.40
mm

(1 in.)
Overall Length (L0)
914.0
mm

(35.984 in.)
Wire Diameter (d)
2.34
mm

(0.092 in.)
Spring Rate
2.30
N/mm
Initial Tension (IT)
2.3
N
1134875 | ES-2540-9140-23-S2 --- Extension Springs - 25.4x914x2.34 mm - Steel - None
Material: Steel - None   
Category: Springs - Extension - Stainless Steel
Part Number: ES-2540-9140-23-S2 Extension Springs - 25.4x914x2.34 mm - Steel - None
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025
Regular price $151.86 AUD
Regular price Sale price $151.86 AUD
Each
OD (D0)
25.40
mm

(1 in.)
Overall Length (L0)
914.0
mm

(35.984 in.)
Wire Diameter (d)
2.34
mm

(0.092 in.)
1134875 | ES-2540-9140-23-S2 --- Extension Springs - 25.4x914x2.34 mm - Steel - None
Material: Steel - None    Spring Rate: 2.30 N/mm    Initial Tension (IT): 2.3 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-2540-9140-23-S2 Extension Springs - 25.4x914x2.34 mm - Steel - None
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025
Regular price $151.86 AUD
Regular price Sale price $151.86 AUD
Each
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OD (D0)
25.40
mm

(1 in.)
Overall Length (L0)
914.0
mm

(35.984 in.)
Wire Diameter (d)
3.05
mm

(0.12 in.)
Spring Rate
9.18
N/mm
Initial Tension (IT)
9.2
N
1134876 | ES-2540-9140-30-S2 --- Extension Springs - 25.4x914x3.05 mm - Steel - None
Material: Steel - None   
Category: Springs - Extension - Stainless Steel
Part Number: ES-2540-9140-30-S2 Extension Springs - 25.4x914x3.05 mm - Steel - None
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025
Regular price $184.59 AUD
Regular price Sale price $184.59 AUD
Each
OD (D0)
25.40
mm

(1 in.)
Overall Length (L0)
914.0
mm

(35.984 in.)
Wire Diameter (d)
3.05
mm

(0.12 in.)
1134876 | ES-2540-9140-30-S2 --- Extension Springs - 25.4x914x3.05 mm - Steel - None
Material: Steel - None    Spring Rate: 9.18 N/mm    Initial Tension (IT): 9.2 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-2540-9140-30-S2 Extension Springs - 25.4x914x3.05 mm - Steel - None
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025
Regular price $184.59 AUD
Regular price Sale price $184.59 AUD
Each
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OD (D0)
26.98
mm

(1.062 in.)
Overall Length (L0)
177.8
mm

(7 in.)
Wire Diameter (d)
2.67
mm

(0.105 in.)
Spring Rate
0.64
N/mm
Initial Tension (IT)
0.6
N
1135874 | ES-2698-1778-27-M --- Extension Springs - 26.98x177.8x2.67 mm - Hard Drawn - Zinc
Material: Hard Drawn - Zinc   
Category: Springs - Extension - Stainless Steel
Part Number: ES-2698-1778-27-M Extension Springs - 26.98x177.8x2.67 mm - Hard Drawn - Zinc
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025
Regular price $45.05 AUD
Regular price Sale price $45.05 AUD
Each
OD (D0)
26.98
mm

(1.062 in.)
Overall Length (L0)
177.8
mm

(7 in.)
Wire Diameter (d)
2.67
mm

(0.105 in.)
1135874 | ES-2698-1778-27-M --- Extension Springs - 26.98x177.8x2.67 mm - Hard Drawn - Zinc
Material: Hard Drawn - Zinc    Spring Rate: 0.64 N/mm    Initial Tension (IT): 0.6 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-2698-1778-27-M Extension Springs - 26.98x177.8x2.67 mm - Hard Drawn - Zinc
Out of Stock | Backorder Now | Orders can be expected around Tue, Jun 03, 2025
Regular price $45.05 AUD
Regular price Sale price $45.05 AUD
Each
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OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
76.2
mm

(3 in.)
Wire Diameter (d)
2.01
mm

(0.079 in.)
Max. Extension (L1)
145.800
mm
Spring Rate
1.226
N/mm
Initial Tension (IT)
8.4
N
1138235 | ES-2858-0762-20-M --- Extension Springs - 28.58x76.2x2.01 mm - Steel
Material: Steel    Load at L1: 93.280 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-0762-20-M Extension Springs - 28.58x76.2x2.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $35.41 AUD
Regular price Sale price $35.41 AUD
Each
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
76.2
mm

(3 in.)
Wire Diameter (d)
2.01
mm

(0.079 in.)
Max. Extension (L1)
145.800
mm
1138235 | ES-2858-0762-20-M --- Extension Springs - 28.58x76.2x2.01 mm - Steel
Material: Steel    Spring Rate: 1.226 N/mm    Initial Tension (IT): 8.4 N    Load at L1: 93.280 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-0762-20-M Extension Springs - 28.58x76.2x2.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $35.41 AUD
Regular price Sale price $35.41 AUD
Each
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OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
76.2
mm

(3 in.)
Wire Diameter (d)
2.49
mm

(0.098 in.)
Max. Extension (L1)
120.650
mm
Spring Rate
2.382
N/mm
Initial Tension (IT)
15.1
N
1138236 | ES-2858-0762-25-M --- Extension Springs - 28.58x76.2x2.49 mm - Steel
Material: Steel    Load at L1: 121.040 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-0762-25-M Extension Springs - 28.58x76.2x2.49 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $43.23 AUD
Regular price Sale price $43.23 AUD
Each
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
76.2
mm

(3 in.)
Wire Diameter (d)
2.49
mm

(0.098 in.)
Max. Extension (L1)
120.650
mm
1138236 | ES-2858-0762-25-M --- Extension Springs - 28.58x76.2x2.49 mm - Steel
Material: Steel    Spring Rate: 2.382 N/mm    Initial Tension (IT): 15.1 N    Load at L1: 121.040 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-0762-25-M Extension Springs - 28.58x76.2x2.49 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $43.23 AUD
Regular price Sale price $43.23 AUD
Each
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OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
76.2
mm

(3 in.)
Wire Diameter (d)
3.15
mm

(0.124 in.)
Max. Extension (L1)
106.930
mm
Spring Rate
8.090
N/mm
Initial Tension (IT)
24.5
N
1138237 | ES-2858-0762-31-M --- Extension Springs - 28.58x76.2x3.15 mm - Steel
Material: Steel    Load at L1: 272.450 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-0762-31-M Extension Springs - 28.58x76.2x3.15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $53.68 AUD
Regular price Sale price $53.68 AUD
Each
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
76.2
mm

(3 in.)
Wire Diameter (d)
3.15
mm

(0.124 in.)
Max. Extension (L1)
106.930
mm
1138237 | ES-2858-0762-31-M --- Extension Springs - 28.58x76.2x3.15 mm - Steel
Material: Steel    Spring Rate: 8.090 N/mm    Initial Tension (IT): 24.5 N    Load at L1: 272.450 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-0762-31-M Extension Springs - 28.58x76.2x3.15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $53.68 AUD
Regular price Sale price $53.68 AUD
Each
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OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
88.9
mm

(3.5 in.)
Wire Diameter (d)
2.01
mm

(0.079 in.)
Max. Extension (L1)
201.170
mm
Spring Rate
0.753
N/mm
Initial Tension (IT)
8.4
N
1138238 | ES-2858-0889-20-M --- Extension Springs - 28.58x88.9x2.01 mm - Steel
Material: Steel    Load at L1: 93.280 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-0889-20-M Extension Springs - 28.58x88.9x2.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $38.59 AUD
Regular price Sale price $38.59 AUD
Each
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
88.9
mm

(3.5 in.)
Wire Diameter (d)
2.01
mm

(0.079 in.)
Max. Extension (L1)
201.170
mm
1138238 | ES-2858-0889-20-M --- Extension Springs - 28.58x88.9x2.01 mm - Steel
Material: Steel    Spring Rate: 0.753 N/mm    Initial Tension (IT): 8.4 N    Load at L1: 93.280 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-0889-20-M Extension Springs - 28.58x88.9x2.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $38.59 AUD
Regular price Sale price $38.59 AUD
Each
View the product page first if you are unsure.
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
88.9
mm

(3.5 in.)
Wire Diameter (d)
2.49
mm

(0.098 in.)
Max. Extension (L1)
158.750
mm
Spring Rate
1.490
N/mm
Initial Tension (IT)
15.1
N
1138239 | ES-2858-0889-25-M --- Extension Springs - 28.58x88.9x2.49 mm - Steel
Material: Steel    Load at L1: 121.040 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-0889-25-M Extension Springs - 28.58x88.9x2.49 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $46.50 AUD
Regular price Sale price $46.50 AUD
Each
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
88.9
mm

(3.5 in.)
Wire Diameter (d)
2.49
mm

(0.098 in.)
Max. Extension (L1)
158.750
mm
1138239 | ES-2858-0889-25-M --- Extension Springs - 28.58x88.9x2.49 mm - Steel
Material: Steel    Spring Rate: 1.490 N/mm    Initial Tension (IT): 15.1 N    Load at L1: 121.040 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-0889-25-M Extension Springs - 28.58x88.9x2.49 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $46.50 AUD
Regular price Sale price $46.50 AUD
Each
View the product page first if you are unsure.
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
88.9
mm

(3.5 in.)
Wire Diameter (d)
3.15
mm

(0.124 in.)
Max. Extension (L1)
135.640
mm
Spring Rate
5.310
N/mm
Initial Tension (IT)
24.5
N
1138240 | ES-2858-0889-31-M --- Extension Springs - 28.58x88.9x3.15 mm - Steel
Material: Steel    Load at L1: 272.450 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-0889-31-M Extension Springs - 28.58x88.9x3.15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $59.05 AUD
Regular price Sale price $59.05 AUD
Each
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
88.9
mm

(3.5 in.)
Wire Diameter (d)
3.15
mm

(0.124 in.)
Max. Extension (L1)
135.640
mm
1138240 | ES-2858-0889-31-M --- Extension Springs - 28.58x88.9x3.15 mm - Steel
Material: Steel    Spring Rate: 5.310 N/mm    Initial Tension (IT): 24.5 N    Load at L1: 272.450 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-0889-31-M Extension Springs - 28.58x88.9x3.15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $59.05 AUD
Regular price Sale price $59.05 AUD
Each
View the product page first if you are unsure.
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
101.6
mm

(4 in.)
Wire Diameter (d)
2.01
mm

(0.079 in.)
Max. Extension (L1)
256.790
mm
Spring Rate
0.543
N/mm
Initial Tension (IT)
8.4
N
1138242 | ES-2858-1016-20-M --- Extension Springs - 28.58x101.6x2.01 mm - Steel
Material: Steel    Load at L1: 93.280 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-1016-20-M Extension Springs - 28.58x101.6x2.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $41.77 AUD
Regular price Sale price $41.77 AUD
Each
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
101.6
mm

(4 in.)
Wire Diameter (d)
2.01
mm

(0.079 in.)
Max. Extension (L1)
256.790
mm
1138242 | ES-2858-1016-20-M --- Extension Springs - 28.58x101.6x2.01 mm - Steel
Material: Steel    Spring Rate: 0.543 N/mm    Initial Tension (IT): 8.4 N    Load at L1: 93.280 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-1016-20-M Extension Springs - 28.58x101.6x2.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $41.77 AUD
Regular price Sale price $41.77 AUD
Each
View the product page first if you are unsure.
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
101.6
mm

(4 in.)
Wire Diameter (d)
2.49
mm

(0.098 in.)
Max. Extension (L1)
196.600
mm
Spring Rate
1.103
N/mm
Initial Tension (IT)
15.1
N
1138243 | ES-2858-1016-25-M --- Extension Springs - 28.58x101.6x2.49 mm - Steel
Material: Steel    Load at L1: 121.040 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-1016-25-M Extension Springs - 28.58x101.6x2.49 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $51.14 AUD
Regular price Sale price $51.14 AUD
Each
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
101.6
mm

(4 in.)
Wire Diameter (d)
2.49
mm

(0.098 in.)
Max. Extension (L1)
196.600
mm
1138243 | ES-2858-1016-25-M --- Extension Springs - 28.58x101.6x2.49 mm - Steel
Material: Steel    Spring Rate: 1.103 N/mm    Initial Tension (IT): 15.1 N    Load at L1: 121.040 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-1016-25-M Extension Springs - 28.58x101.6x2.49 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $51.14 AUD
Regular price Sale price $51.14 AUD
Each
View the product page first if you are unsure.
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
101.6
mm

(4 in.)
Wire Diameter (d)
3.15
mm

(0.124 in.)
Max. Extension (L1)
164.590
mm
Spring Rate
3.940
N/mm
Initial Tension (IT)
24.5
N
1138244 | ES-2858-1016-31-M --- Extension Springs - 28.58x101.6x3.15 mm - Steel
Material: Steel    Load at L1: 272.450 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-1016-31-M Extension Springs - 28.58x101.6x3.15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $64.95 AUD
Regular price Sale price $64.95 AUD
Each
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
101.6
mm

(4 in.)
Wire Diameter (d)
3.15
mm

(0.124 in.)
Max. Extension (L1)
164.590
mm
1138244 | ES-2858-1016-31-M --- Extension Springs - 28.58x101.6x3.15 mm - Steel
Material: Steel    Spring Rate: 3.940 N/mm    Initial Tension (IT): 24.5 N    Load at L1: 272.450 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-1016-31-M Extension Springs - 28.58x101.6x3.15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $64.95 AUD
Regular price Sale price $64.95 AUD
Each
View the product page first if you are unsure.
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
114.3
mm

(4.5 in.)
Wire Diameter (d)
2.01
mm

(0.079 in.)
Max. Extension (L1)
312.170
mm
Spring Rate
0.438
N/mm
Initial Tension (IT)
8.4
N
1138246 | ES-2858-1143-20-M --- Extension Springs - 28.58x114.3x2.01 mm - Steel
Material: Steel    Load at L1: 93.280 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-1143-20-M Extension Springs - 28.58x114.3x2.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $44.68 AUD
Regular price Sale price $44.68 AUD
Each
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
114.3
mm

(4.5 in.)
Wire Diameter (d)
2.01
mm

(0.079 in.)
Max. Extension (L1)
312.170
mm
1138246 | ES-2858-1143-20-M --- Extension Springs - 28.58x114.3x2.01 mm - Steel
Material: Steel    Spring Rate: 0.438 N/mm    Initial Tension (IT): 8.4 N    Load at L1: 93.280 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-1143-20-M Extension Springs - 28.58x114.3x2.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $44.68 AUD
Regular price Sale price $44.68 AUD
Each
View the product page first if you are unsure.
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
114.3
mm

(4.5 in.)
Wire Diameter (d)
2.49
mm

(0.098 in.)
Max. Extension (L1)
234.700
mm
Spring Rate
0.876
N/mm
Initial Tension (IT)
15.1
N
1138247 | ES-2858-1143-25-M --- Extension Springs - 28.58x114.3x2.49 mm - Steel
Material: Steel    Load at L1: 121.040 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-1143-25-M Extension Springs - 28.58x114.3x2.49 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $55.68 AUD
Regular price Sale price $55.68 AUD
Each
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
114.3
mm

(4.5 in.)
Wire Diameter (d)
2.49
mm

(0.098 in.)
Max. Extension (L1)
234.700
mm
1138247 | ES-2858-1143-25-M --- Extension Springs - 28.58x114.3x2.49 mm - Steel
Material: Steel    Spring Rate: 0.876 N/mm    Initial Tension (IT): 15.1 N    Load at L1: 121.040 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-1143-25-M Extension Springs - 28.58x114.3x2.49 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $55.68 AUD
Regular price Sale price $55.68 AUD
Each
View the product page first if you are unsure.
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
114.3
mm

(4.5 in.)
Wire Diameter (d)
3.15
mm

(0.124 in.)
Max. Extension (L1)
193.290
mm
Spring Rate
3.130
N/mm
Initial Tension (IT)
24.5
N
1138248 | ES-2858-1143-31-M --- Extension Springs - 28.58x114.3x3.15 mm - Steel
Material: Steel    Load at L1: 272.450 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-1143-31-M Extension Springs - 28.58x114.3x3.15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $70.23 AUD
Regular price Sale price $70.23 AUD
Each
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
114.3
mm

(4.5 in.)
Wire Diameter (d)
3.15
mm

(0.124 in.)
Max. Extension (L1)
193.290
mm
1138248 | ES-2858-1143-31-M --- Extension Springs - 28.58x114.3x3.15 mm - Steel
Material: Steel    Spring Rate: 3.130 N/mm    Initial Tension (IT): 24.5 N    Load at L1: 272.450 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-1143-31-M Extension Springs - 28.58x114.3x3.15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $70.23 AUD
Regular price Sale price $70.23 AUD
Each
View the product page first if you are unsure.
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
127.0
mm

(5 in.)
Wire Diameter (d)
2.01
mm

(0.079 in.)
Max. Extension (L1)
367.540
mm
Spring Rate
0.350
N/mm
Initial Tension (IT)
8.4
N
1138250 | ES-2858-1270-20-M --- Extension Springs - 28.58x127x2.01 mm - Steel
Material: Steel    Load at L1: 93.280 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-1270-20-M Extension Springs - 28.58x127x2.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $47.50 AUD
Regular price Sale price $47.50 AUD
Each
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
127.0
mm

(5 in.)
Wire Diameter (d)
2.01
mm

(0.079 in.)
Max. Extension (L1)
367.540
mm
1138250 | ES-2858-1270-20-M --- Extension Springs - 28.58x127x2.01 mm - Steel
Material: Steel    Spring Rate: 0.350 N/mm    Initial Tension (IT): 8.4 N    Load at L1: 93.280 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-1270-20-M Extension Springs - 28.58x127x2.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $47.50 AUD
Regular price Sale price $47.50 AUD
Each
View the product page first if you are unsure.
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
127.0
mm

(5 in.)
Wire Diameter (d)
2.49
mm

(0.098 in.)
Max. Extension (L1)
272.540
mm
Spring Rate
0.718
N/mm
Initial Tension (IT)
15.1
N
1138251 | ES-2858-1270-25-M --- Extension Springs - 28.58x127x2.49 mm - Steel
Material: Steel    Load at L1: 121.040 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-1270-25-M Extension Springs - 28.58x127x2.49 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $58.68 AUD
Regular price Sale price $58.68 AUD
Each
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
127.0
mm

(5 in.)
Wire Diameter (d)
2.49
mm

(0.098 in.)
Max. Extension (L1)
272.540
mm
1138251 | ES-2858-1270-25-M --- Extension Springs - 28.58x127x2.49 mm - Steel
Material: Steel    Spring Rate: 0.718 N/mm    Initial Tension (IT): 15.1 N    Load at L1: 121.040 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-1270-25-M Extension Springs - 28.58x127x2.49 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $58.68 AUD
Regular price Sale price $58.68 AUD
Each
View the product page first if you are unsure.
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
127.0
mm

(5 in.)
Wire Diameter (d)
3.15
mm

(0.124 in.)
Max. Extension (L1)
222.250
mm
Spring Rate
2.610
N/mm
Initial Tension (IT)
24.5
N
1138252 | ES-2858-1270-31-M --- Extension Springs - 28.58x127x3.15 mm - Steel
Material: Steel    Load at L1: 272.450 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-1270-31-M Extension Springs - 28.58x127x3.15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $75.14 AUD
Regular price Sale price $75.14 AUD
Each
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
127.0
mm

(5 in.)
Wire Diameter (d)
3.15
mm

(0.124 in.)
Max. Extension (L1)
222.250
mm
1138252 | ES-2858-1270-31-M --- Extension Springs - 28.58x127x3.15 mm - Steel
Material: Steel    Spring Rate: 2.610 N/mm    Initial Tension (IT): 24.5 N    Load at L1: 272.450 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-1270-31-M Extension Springs - 28.58x127x3.15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $75.14 AUD
Regular price Sale price $75.14 AUD
Each
View the product page first if you are unsure.
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
139.7
mm

(5.5 in.)
Wire Diameter (d)
2.01
mm

(0.079 in.)
Max. Extension (L1)
422.910
mm
Spring Rate
0.298
N/mm
Initial Tension (IT)
8.4
N
1138253 | ES-2858-1397-20-M --- Extension Springs - 28.58x139.7x2.01 mm - Steel
Material: Steel    Load at L1: 93.280 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-1397-20-M Extension Springs - 28.58x139.7x2.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $51.32 AUD
Regular price Sale price $51.32 AUD
Each
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
139.7
mm

(5.5 in.)
Wire Diameter (d)
2.01
mm

(0.079 in.)
Max. Extension (L1)
422.910
mm
1138253 | ES-2858-1397-20-M --- Extension Springs - 28.58x139.7x2.01 mm - Steel
Material: Steel    Spring Rate: 0.298 N/mm    Initial Tension (IT): 8.4 N    Load at L1: 93.280 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-1397-20-M Extension Springs - 28.58x139.7x2.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $51.32 AUD
Regular price Sale price $51.32 AUD
Each
View the product page first if you are unsure.
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
139.7
mm

(5.5 in.)
Wire Diameter (d)
2.49
mm

(0.098 in.)
Max. Extension (L1)
310.640
mm
Spring Rate
0.613
N/mm
Initial Tension (IT)
15.1
N
1138254 | ES-2858-1397-25-M --- Extension Springs - 28.58x139.7x2.49 mm - Steel
Material: Steel    Load at L1: 121.040 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-1397-25-M Extension Springs - 28.58x139.7x2.49 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $62.68 AUD
Regular price Sale price $62.68 AUD
Each
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
139.7
mm

(5.5 in.)
Wire Diameter (d)
2.49
mm

(0.098 in.)
Max. Extension (L1)
310.640
mm
1138254 | ES-2858-1397-25-M --- Extension Springs - 28.58x139.7x2.49 mm - Steel
Material: Steel    Spring Rate: 0.613 N/mm    Initial Tension (IT): 15.1 N    Load at L1: 121.040 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-1397-25-M Extension Springs - 28.58x139.7x2.49 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $62.68 AUD
Regular price Sale price $62.68 AUD
Each
View the product page first if you are unsure.
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
139.7
mm

(5.5 in.)
Wire Diameter (d)
3.15
mm

(0.124 in.)
Max. Extension (L1)
250.950
mm
Spring Rate
2.220
N/mm
Initial Tension (IT)
24.5
N
1138255 | ES-2858-1397-31-M --- Extension Springs - 28.58x139.7x3.15 mm - Steel
Material: Steel    Load at L1: 272.450 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-1397-31-M Extension Springs - 28.58x139.7x3.15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $82.77 AUD
Regular price Sale price $82.77 AUD
Each
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
139.7
mm

(5.5 in.)
Wire Diameter (d)
3.15
mm

(0.124 in.)
Max. Extension (L1)
250.950
mm
1138255 | ES-2858-1397-31-M --- Extension Springs - 28.58x139.7x3.15 mm - Steel
Material: Steel    Spring Rate: 2.220 N/mm    Initial Tension (IT): 24.5 N    Load at L1: 272.450 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-1397-31-M Extension Springs - 28.58x139.7x3.15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $82.77 AUD
Regular price Sale price $82.77 AUD
Each
View the product page first if you are unsure.
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
152.4
mm

(6 in.)
Wire Diameter (d)
2.01
mm

(0.079 in.)
Max. Extension (L1)
478.540
mm
Spring Rate
0.263
N/mm
Initial Tension (IT)
8.4
N
1138257 | ES-2858-1524-20-M --- Extension Springs - 28.58x152.4x2.01 mm - Steel
Material: Steel    Load at L1: 93.280 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-1524-20-M Extension Springs - 28.58x152.4x2.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $54.59 AUD
Regular price Sale price $54.59 AUD
Each
OD (D0)
28.58
mm

(1.125 in.)
Overall Length (L0)
152.4
mm

(6 in.)
Wire Diameter (d)
2.01
mm

(0.079 in.)
Max. Extension (L1)
478.540
mm
1138257 | ES-2858-1524-20-M --- Extension Springs - 28.58x152.4x2.01 mm - Steel
Material: Steel    Spring Rate: 0.263 N/mm    Initial Tension (IT): 8.4 N    Load at L1: 93.280 N   
Category: Springs - Extension - Music Wire
Part Number: ES-2858-1524-20-M Extension Springs - 28.58x152.4x2.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Tue, Jul 08, 2025
Regular price $54.59 AUD
Regular price Sale price $54.59 AUD
Each
View the product page first if you are unsure.