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4040 - 20.5 Inch, 12 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 40 coils and Closed & Ground ends. This spring features an O.D. of 1.437 Inch, an I.D. of 1.113 Inch, and a spring rate of 12 Inch Pounds.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name 4040
Ends Closed & Ground
Finish Zinc
Free Length 20.5 in
Inside Diameter 1.113 in
Material Spring Steel
Outside Diameter 1.437 in
Part Type Standard
Rate 12 lbs/in
SKU 4040CS
Solid Length 6.4 in
Suggested Max Deflection 7.4 in
Suggested Max Load 88 lbf
Total Coils 40
Wire Diameter 0.162 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 4040
Ends Closed & Ground
Finish Zinc
Free Length 520.7 mm
Inside Diameter 28.27 mm
Material Spring Steel
Outside Diameter 36.5 mm
Part Type Standard
Rate 2.1 N/mm
SKU 4040CS
Solid Length 162.56 mm
Suggested Max Deflection 187.96 mm
Suggested Max Load 391.42 N
Total Coils 40
Wire Diameter 4.11 mm

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