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4340 - 2.13 Inch, 66 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 9.5 coils and Closed & Ground ends. This spring features an O.D. of 1.125 Inch, an I.D. of 0.855 Inch, and a spring rate of 66 Inch Pounds.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name 4340
Ends Closed & Ground
Finish Zinc
Free Length 2.13 in
Inside Diameter 0.855 in
Material Spring Steel
Outside Diameter 1.125 in
Part Type Standard
Rate 66 lbs/in
SKU 4340CS
Solid Length 1.28 in
Suggested Max Deflection 0.84 in
Suggested Max Load 55 lbf
Total Coils 9.5
Wire Diameter 0.135 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 4340
Ends Closed & Ground
Finish Zinc
Free Length 54.1 mm
Inside Diameter 21.72 mm
Material Spring Steel
Outside Diameter 28.58 mm
Part Type Standard
Rate 11.56 N/mm
SKU 4340CS
Solid Length 32.51 mm
Suggested Max Deflection 21.34 mm
Suggested Max Load 244.64 N
Total Coils 9.5
Wire Diameter 3.43 mm

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