This browser is no longer supported. Upgrade to Microsoft Edge or switch to a supported browser, like Chrome, Safari, or Firefox, to explore the MW Components website.

We're sorry for the inconvenience.

K-20 - 0.38 Inch 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 4 total coils and Closed ends. This spring features an O.D. of 0.375 Inch, and an I.D. of 0.305 Inch.

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 K-20
Ends Closed
Finish Gold Iridite
Free Length 0.38 in
Inside Diameter 0.305 in
Material Spring Steel
Outside Diameter 0.375 in
Part Type Standard
Rate 27 lbs/in
SKU K-20CS
Solid Length 0.18 in
Suggested Max Deflection 0.16 in
Suggested Max Load 4.4 lbf
Total Coils 4
Wire Diameter 0.035 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name K-20
Ends Closed
Finish Gold Iridite
Free Length 9.65 mm
Inside Diameter 7.75 mm
Material Spring Steel
Outside Diameter 9.53 mm
Part Type Standard
Rate 4.73 N/mm
SKU K-20CS
Solid Length 4.57 mm
Suggested Max Deflection 4.06 mm
Suggested Max Load 19.57 N
Total Coils 4
Wire Diameter 0.89 mm