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Century Spring

3737CS - 1.44" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 8 coils and closed ends. This spring features an O.D. of 0.468", and an I.D. of 0.4".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 3737
Ends Closed
Finish Zinc
Free Length 1.44 in
Inside Diameter 0.4 in
Material Spring Steel
Outside Diameter 0.468 in
Part Type Standard
Rate 3.9 lbs/in
SKU 3737CS
Solid Length 0.31 in
Suggested Max Deflection 0.88 in
Suggested Max Load 3.4 lbf
Total Coils 8
Wire Diameter 0.034 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 3737
Ends Closed
Finish Zinc
Free Length 36.58 mm
Inside Diameter 10.16 mm
Material Spring Steel
Outside Diameter 11.89 mm
Part Type Standard
Rate 0.68 N/mm
SKU 3737CS
Solid Length 7.87 mm
Suggested Max Deflection 22.35 mm
Suggested Max Load 15.12 N
Total Coils 8
Wire Diameter 0.86 mm
The 3737CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.034" diameter spring steel, the 3737 spring design exhibits reliable strength across its 8 active coils, withstanding repeated compression cycles with a maximum load of 3.4 lbf without succumbing to fatigue.

We manufacture the 3737 design to provide a compression spring that is 1.44" long at rest and provides a consistent rate of 3.9 lbs/in along its recommended maximum of 0.88" deflection. For best results, your application should fully accommodate the inner (0.4") and outer (0.468") diameters of this spring and be designed for its closed end configuration.

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