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12257 - 3 Inch Spring Steel Compression Spring

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

Compression spring manufactured from Spring Steel with 20.5 coils and Closed ends. This spring features an O.D. of 0.375 Inch, and an I.D. of 0.291 Inch.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name 12257
Ends Closed
Finish Zinc
Free Length 3 in
Inside Diameter 0.291 in
Material Spring Steel
Outside Diameter 0.375 in
Part Type Standard
Rate 6.5 lbs/in
SKU 12257CS
Solid Length 0.9 in
Suggested Max Deflection 1.2 in
Suggested Max Load 7.5 lbf
Total Coils 20.5
Wire Diameter 0.042 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 12257
Ends Closed
Finish Zinc
Free Length 76.2 mm
Inside Diameter 7.39 mm
Material Spring Steel
Outside Diameter 9.53 mm
Part Type Standard
Rate 1.14 N/mm
SKU 12257CS
Solid Length 22.86 mm
Suggested Max Deflection 30.48 mm
Suggested Max Load 33.36 N
Total Coils 20.5
Wire Diameter 1.07 mm

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