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3970 - 3.19 Inch, 9.1 Inch Pounds 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 12.5 coils and Closed & Ground ends. This spring features an O.D. of 0.812 Inch, an I.D. of 0.668 Inch, and a spring rate of 9.1 Inch Pounds.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name 3970
Ends Closed & Ground
Finish Zinc
Free Length 3.19 in
Inside Diameter 0.668 in
Material Spring Steel
Outside Diameter 0.812 in
Part Type Standard
Rate 9.1 lbs/in
SKU 3970CS
Solid Length 0.9 in
Suggested Max Deflection 1.7 in
Suggested Max Load 16 lbf
Total Coils 12.5
Wire Diameter 0.072 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 3970
Ends Closed & Ground
Finish Zinc
Free Length 81.03 mm
Inside Diameter 16.97 mm
Material Spring Steel
Outside Diameter 20.62 mm
Part Type Standard
Rate 1.59 N/mm
SKU 3970CS
Solid Length 22.86 mm
Suggested Max Deflection 43.18 mm
Suggested Max Load 71.17 N
Total Coils 12.5
Wire Diameter 1.83 mm

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