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3987 - 4 Inch, 80 Inch Pounds Spring Steel Compression Spring

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

Compression spring manufactured from Spring Steel with 12.3 coils and Closed & Ground ends. This spring features an O.D. of 1.375 Inch, an I.D. of 1.021 Inch, and a spring rate of 80 Inch Pounds.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name 3987
Ends Closed & Ground
Finish Zinc
Free Length 4 in
Inside Diameter 1.021 in
Material Spring Steel
Outside Diameter 1.375 in
Part Type Standard
Rate 80 lbs/in
SKU 3987CS
Solid Length 2.17 in
Suggested Max Deflection 1.5 in
Suggested Max Load 119 lbf
Total Coils 12.3
Wire Diameter 0.177 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 3987
Ends Closed & Ground
Finish Zinc
Free Length 101.6 mm
Inside Diameter 25.93 mm
Material Spring Steel
Outside Diameter 34.93 mm
Part Type Standard
Rate 14.01 N/mm
SKU 3987CS
Solid Length 55.12 mm
Suggested Max Deflection 38.1 mm
Suggested Max Load 529.31 N
Total Coils 12.3
Wire Diameter 4.5 mm

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