Collection: Springs - Extension - Music Wire

Springs (With Images)

Extension

Music Wire
Stainless Steel

894 Products in this selection

Includes long lengths up to 1 metre
Zinc Plated Spring Steel not recommended for applications exceeding 121 ^oC (250 Deg F).
302 Stainless springs not recommended for applications exceeding 260 ^oC (500 Deg F).
302 stainless steel is slightly magnetic.

Additional resources:
Spings Catalogue PDF
Spring Anchors

A more concise listing may be found on the Smallparts store at Springs - Extension - Music Wire. Smallparts promote the most popular MBA products.

OD (D0)	Overall Length (L0)	Wire Diameter (d)	Max. Extension (L1)	Spring Rate	Initial Tension (IT)
OD (D0) 50.80 mm _{(2 in.)}	Overall Length (L0) 190.5 mm _{(7.5 in.)}	Wire Diameter (d) 4.50 mm _{(0.177 in.)}	Max. Extension (L1) 422.150 mm	Spring Rate 1.716 N/mm	Initial Tension (IT) 37.2 N
Material: Steel Load at L1: 413.460 N End Type: Closed - Full Loop
Part Number: ES-5080-1905-45-M Extension Springs - 50.8x190.5x4.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $283.32 AUD Regular price Sale price $283.32 AUD Unit price per Each
OD (D0)	Overall Length (L0)	Wire Diameter (d)	Max. Extension (L1)	Indicative Image
OD (D0) 50.80 mm _{(2 in.)}	Overall Length (L0) 190.5 mm _{(7.5 in.)}	Wire Diameter (d) 4.50 mm _{(0.177 in.)}	Max. Extension (L1) 422.150 mm
Material: Steel Spring Rate: 1.716 N/mm Initial Tension (IT): 37.2 N Load at L1: 413.460 N End Type: Closed - Full Loop
Part Number: ES-5080-1905-45-M Extension Springs - 50.8x190.5x4.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $283.32 AUD Regular price Sale price $283.32 AUD Unit price per Each View the product page first if you are unsure.
ES-5080-1905-45-M --- Extension Springs - 50.8x190.5x4.5 mm - Steel ES-5080-1905-45-M --- Extension Springs - 50.8x190.5x4.5 mm - Steel Regular price $283.32 AUD Regular price Sale price $283.32 AUD Unit price per Out of stock! Backorder Now
OD (D0) 50.80 mm _{(2 in.)}	Overall Length (L0) 190.5 mm _{(7.5 in.)}	Wire Diameter (d) 5.00 mm _{(0.197 in.)}	Max. Extension (L1) 353.310 mm	Spring Rate 2.943 N/mm	Initial Tension (IT) 57.3 N
Material: Steel Load at L1: 501.670 N End Type: Closed - Full Loop
Part Number: ES-5080-1905-50-M Extension Springs - 50.8x190.5x5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $328.23 AUD Regular price Sale price $328.23 AUD Unit price per Each
OD (D0) 50.80 mm _{(2 in.)}	Overall Length (L0) 190.5 mm _{(7.5 in.)}	Wire Diameter (d) 5.00 mm _{(0.197 in.)}	Max. Extension (L1) 353.310 mm
Material: Steel Spring Rate: 2.943 N/mm Initial Tension (IT): 57.3 N Load at L1: 501.670 N End Type: Closed - Full Loop
Part Number: ES-5080-1905-50-M Extension Springs - 50.8x190.5x5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $328.23 AUD Regular price Sale price $328.23 AUD Unit price per Each View the product page first if you are unsure.
ES-5080-1905-50-M --- Extension Springs - 50.8x190.5x5 mm - Steel ES-5080-1905-50-M --- Extension Springs - 50.8x190.5x5 mm - Steel Regular price $328.23 AUD Regular price Sale price $328.23 AUD Unit price per Out of stock! Backorder Now
OD (D0) 50.80 mm _{(2 in.)}	Overall Length (L0) 203.2 mm _{(8 in.)}	Wire Diameter (d) 4.50 mm _{(0.177 in.)}	Max. Extension (L1) 499.620 mm	Spring Rate 1.384 N/mm	Initial Tension (IT) 37.2 N
Material: Steel Load at L1: 413.460 N End Type: Closed - Full Loop
Part Number: ES-5080-2032-45-M Extension Springs - 50.8x203.2x4.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $301.86 AUD Regular price Sale price $301.86 AUD Unit price per Each
OD (D0) 50.80 mm _{(2 in.)}	Overall Length (L0) 203.2 mm _{(8 in.)}	Wire Diameter (d) 4.50 mm _{(0.177 in.)}	Max. Extension (L1) 499.620 mm
Material: Steel Spring Rate: 1.384 N/mm Initial Tension (IT): 37.2 N Load at L1: 413.460 N End Type: Closed - Full Loop
Part Number: ES-5080-2032-45-M Extension Springs - 50.8x203.2x4.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $301.86 AUD Regular price Sale price $301.86 AUD Unit price per Each View the product page first if you are unsure.
ES-5080-2032-45-M --- Extension Springs - 50.8x203.2x4.5 mm - Steel ES-5080-2032-45-M --- Extension Springs - 50.8x203.2x4.5 mm - Steel Regular price $301.86 AUD Regular price Sale price $301.86 AUD Unit price per Out of stock! Backorder Now
OD (D0) 50.80 mm _{(2 in.)}	Overall Length (L0) 203.2 mm _{(8 in.)}	Wire Diameter (d) 5.00 mm _{(0.197 in.)}	Max. Extension (L1) 413.770 mm	Spring Rate 2.365 N/mm	Initial Tension (IT) 57.3 N
Material: Steel Load at L1: 501.670 N End Type: Closed - Full Loop
Part Number: ES-5080-2032-50-M Extension Springs - 50.8x203.2x5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $340.50 AUD Regular price Sale price $340.50 AUD Unit price per Each
OD (D0) 50.80 mm _{(2 in.)}	Overall Length (L0) 203.2 mm _{(8 in.)}	Wire Diameter (d) 5.00 mm _{(0.197 in.)}	Max. Extension (L1) 413.770 mm
Material: Steel Spring Rate: 2.365 N/mm Initial Tension (IT): 57.3 N Load at L1: 501.670 N End Type: Closed - Full Loop
Part Number: ES-5080-2032-50-M Extension Springs - 50.8x203.2x5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $340.50 AUD Regular price Sale price $340.50 AUD Unit price per Each View the product page first if you are unsure.
ES-5080-2032-50-M --- Extension Springs - 50.8x203.2x5 mm - Steel ES-5080-2032-50-M --- Extension Springs - 50.8x203.2x5 mm - Steel Regular price $340.50 AUD Regular price Sale price $340.50 AUD Unit price per Out of stock! Backorder Now
OD (D0) 50.80 mm _{(2 in.)}	Overall Length (L0) 228.6 mm _{(9 in.)}	Wire Diameter (d) 4.50 mm _{(0.177 in.)}	Max. Extension (L1) 577.340 mm	Spring Rate 1.156 N/mm	Initial Tension (IT) 37.2 N
Material: Steel Load at L1: 413.460 N End Type: Closed - Full Loop
Part Number: ES-5080-2286-45-M Extension Springs - 50.8x228.6x4.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $320.77 AUD Regular price Sale price $320.77 AUD Unit price per Each
OD (D0) 50.80 mm _{(2 in.)}	Overall Length (L0) 228.6 mm _{(9 in.)}	Wire Diameter (d) 4.50 mm _{(0.177 in.)}	Max. Extension (L1) 577.340 mm
Material: Steel Spring Rate: 1.156 N/mm Initial Tension (IT): 37.2 N Load at L1: 413.460 N End Type: Closed - Full Loop
Part Number: ES-5080-2286-45-M Extension Springs - 50.8x228.6x4.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $320.77 AUD Regular price Sale price $320.77 AUD Unit price per Each View the product page first if you are unsure.
ES-5080-2286-45-M --- Extension Springs - 50.8x228.6x4.5 mm - Steel ES-5080-2286-45-M --- Extension Springs - 50.8x228.6x4.5 mm - Steel Regular price $320.77 AUD Regular price Sale price $320.77 AUD Unit price per Out of stock! Backorder Now
OD (D0) 50.80 mm _{(2 in.)}	Overall Length (L0) 228.6 mm _{(9 in.)}	Wire Diameter (d) 5.00 mm _{(0.197 in.)}	Max. Extension (L1) 473.960 mm	Spring Rate 1.980 N/mm	Initial Tension (IT) 57.3 N
Material: Steel Load at L1: 501.670 N End Type: Closed - Full Loop
Part Number: ES-5080-2286-50-M Extension Springs - 50.8x228.6x5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $361.50 AUD Regular price Sale price $361.50 AUD Unit price per Each
OD (D0) 50.80 mm _{(2 in.)}	Overall Length (L0) 228.6 mm _{(9 in.)}	Wire Diameter (d) 5.00 mm _{(0.197 in.)}	Max. Extension (L1) 473.960 mm
Material: Steel Spring Rate: 1.980 N/mm Initial Tension (IT): 57.3 N Load at L1: 501.670 N End Type: Closed - Full Loop
Part Number: ES-5080-2286-50-M Extension Springs - 50.8x228.6x5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $361.50 AUD Regular price Sale price $361.50 AUD Unit price per Each View the product page first if you are unsure.
ES-5080-2286-50-M --- Extension Springs - 50.8x228.6x5 mm - Steel ES-5080-2286-50-M --- Extension Springs - 50.8x228.6x5 mm - Steel Regular price $361.50 AUD Regular price Sale price $361.50 AUD Unit price per Out of stock! Backorder Now