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Century Spring

K-37CS - 4.75" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 38 coils and closed & ground ends. This spring features an O.D. of 0.5", and an I.D. of 0.318".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name K-37
Ends Closed & Ground
Finish Gold Iridite
Free Length 4.75 in
Inside Diameter 0.318 in
Material Spring Steel
Outside Diameter 0.5 in
Part Type Standard
Rate 40 lbs/in
SKU K-37CS
Solid Length 3.46 in
Suggested Max Deflection 1.2 in
Suggested Max Load 47 lbf
Total Coils 38
Wire Diameter 0.091 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name K-37
Ends Closed & Ground
Finish Gold Iridite
Free Length 120.65 mm
Inside Diameter 8.08 mm
Material Spring Steel
Outside Diameter 12.7 mm
Part Type Standard
Rate 7 N/mm
SKU K-37CS
Solid Length 87.88 mm
Suggested Max Deflection 30.48 mm
Suggested Max Load 209.06 N
Total Coils 38
Wire Diameter 2.31 mm
The K-37CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.091" diameter spring steel, the K-37 spring design exhibits reliable strength across its 38 active coils, withstanding repeated compression cycles with a maximum load of 47 lbf without succumbing to fatigue.

We manufacture the K-37 design to provide a compression spring that is 4.75" long at rest and provides a consistent rate of 40 lbs/in along its recommended maximum of 1.2" deflection. For best results, your application should fully accommodate the inner (0.318") and outer (0.5") diameters of this spring and be designed for its closed & ground end configuration.

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