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31CS - 4 Inch High Carbon Compression Springs

Inventory Status
Estimated Lead Time

The 31CS is a regular compression spring manufactured by Century Spring. It is made from High Carbon wire and has a zinc finish. This spring has a wire diameter of 0.162 inches, an outer diameter of 1.75 inches, and a free length of 4 inches. It has a spring rate of 37 lbs/inch and can withstand a maximum load of 73 pound force. The 31CS is a closed and ground-end spring, ensuring optimal performance. This standard compression spring is suitable for a wide range of applications where reliable and durable spring action is required.

At Century Spring, we pride ourselves on our fast shipping and extensive stock inventory. We understand the urgency of your projects, which is why we ensure prompt delivery of our products, including the 31CS. Additionally, all our springs are proudly made in the United States, guaranteeing exceptional quality and craftsmanship. With our reliable shipping and ample supply, Century Spring is your trusted partner for all your spring needs.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Closed & Ground
Finish Zinc
Free Length 4 in
Inside Diameter 1.426 in
Material Spring Steel
Outside Diameter 1.75 in
Part Type Standard
Rate 37 lbs/in
SKU 31CS
Solid Length 1.42 in
Suggested Max Deflection 2 in
Suggested Max Load 73 lbf
Total Coils 8.75
Wire Diameter 0.162 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Closed & Ground
Finish Zinc
Free Length 101.6 mm
Inside Diameter 36.22 mm
Material Spring Steel
Outside Diameter 44.45 mm
Part Type Standard
Rate 6.48 N/mm
SKU 31CS
Solid Length 36.07 mm
Suggested Max Deflection 50.8 mm
Suggested Max Load 324.7 N
Total Coils 8.75
Wire Diameter 4.11 mm