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521 - 1.5 Inch, 5.3 Inch Pounds Hard Drawn Compression Spring

Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours

Compression spring manufactured from Hard Drawn with 10 coils and Closed ends. This spring features an O.D. of 0.5 Inch, an I.D. of 0.418 Inch, and a spring rate of 5.3 Inch Pounds.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name 521
Ends Closed
Finish Zinc
Free Length 1.5 in
Inside Diameter 0.418 in
Material Hard Drawn
Outside Diameter 0.5 in
Part Type Standard
Rate 5.3 lbs/in
SKU 521CS
Solid Length 0.45 in
Suggested Max Deflection 1 in
Suggested Max Load 5.4 lbf
Total Coils 10
Wire Diameter 0.041 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 521
Ends Closed
Finish Zinc
Free Length 38.1 mm
Inside Diameter 10.62 mm
Material Hard Drawn
Outside Diameter 12.7 mm
Part Type Standard
Rate 0.93 N/mm
SKU 521CS
Solid Length 11.43 mm
Suggested Max Deflection 25.4 mm
Suggested Max Load 24.02 N
Total Coils 10
Wire Diameter 1.04 mm

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