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3899 - 0.44 Inch, 165 Inch Pounds Spring Steel Compression Spring

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

Regular compression spring in Spring Steel with 3.5 total coils and Closed & Ground ends. This spring features an O.D. of 0.42 Inch, an I.D. of 0.312 Inch, and a spring rate of 165 Inch Pounds.

NOTE: The spring rate value for compression springs with 4 coils or less is a reference value.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name 3899
Ends Closed & Ground
Finish Zinc
Free Length 0.44 in
Inside Diameter 0.312 in
Material Spring Steel
Outside Diameter 0.42 in
Part Type Standard
Rate 165 lbs/in
SKU 3899CS
Solid Length 0.19 in
Suggested Max Deflection 0.08 in
Suggested Max Load 13 lbf
Total Coils 3.5
Wire Diameter 0.054 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 3899
Ends Closed & Ground
Finish Zinc
Free Length 11.18 mm
Inside Diameter 7.92 mm
Material Spring Steel
Outside Diameter 10.67 mm
Part Type Standard
Rate 28.89 N/mm
SKU 3899CS
Solid Length 4.83 mm
Suggested Max Deflection 2.03 mm
Suggested Max Load 57.82 N
Total Coils 3.5
Wire Diameter 1.37 mm

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