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66521SCS - 0.25 Inch 316 Stainless Steel Compression Springs

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The 66521SCS is a regular compression spring manufactured by Century Spring. It is made from 316 Stainless Steel and has a passivated finish. This spring has a wire diameter of 0.024 inches, an outside diameter of 0.188 inches, and a free length of 0.25 inches. It has a spring rate of 31.34 lbs/inch and a maximum load of 2.225 Pound Force. The 66521SCS is a closed-end spring, meaning the ends are squared and ground. It is a standard compression spring suitable for various applications.

At Century Spring, we pride ourselves on fast shipping and a significant stock inventory. Our products, including the 66521SCS, are proudly made in the United States. With our efficient shipping process and ample supply, Century Spring ensures that customers can quickly receive the springs they need for their projects.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Closed & Ground
Finish Passivated
Free Length 0.25 in
Inside Diameter 0.14 in
Material 316 Stainless Steel
Outside Diameter 0.188 in
Part Type Standard
Rate 31.34 lbs/in
SKU 66521SCS
Solid Length 0.12 in
Suggested Max Deflection 0.071 in
Suggested Max Load 2.225 lbf
Total Coils 5
Wire Diameter 0.024 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Closed & Ground
Finish Passivated
Free Length 6.35 mm
Inside Diameter 3.56 mm
Material 316 Stainless Steel
Outside Diameter 4.78 mm
Part Type Standard
Rate 5.49 N/mm
SKU 66521SCS
Solid Length 3.05 mm
Suggested Max Deflection 1.8 mm
Suggested Max Load 9.9 N
Total Coils 5
Wire Diameter 0.61 mm