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Century Spring

3917 - 1.63 Inch Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from Spring Steel with 13 coils and Closed ends. This spring features an O.D. of 0.625 Inch, and an I.D. of 0.529 Inch.

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 3917
Ends Closed
Finish Zinc
Free Length 1.63 in
Inside Diameter 0.529 in
Material Spring Steel
Outside Diameter 0.625 in
Part Type Standard
Rate 3.6 lbs/in
SKU 3917CS
Solid Length 0.67 in
Suggested Max Deflection 0.95 in
Suggested Max Load 3.4 lbf
Total Coils 13
Wire Diameter 0.048 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 3917
Ends Closed
Finish Zinc
Free Length 41.4 mm
Inside Diameter 13.44 mm
Material Spring Steel
Outside Diameter 15.88 mm
Part Type Standard
Rate 0.63 N/mm
SKU 3917CS
Solid Length 17.02 mm
Suggested Max Deflection 24.13 mm
Suggested Max Load 15.12 N
Total Coils 13
Wire Diameter 1.22 mm
The 3917CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.048" diameter hard drawn, the 3917 spring design exhibits reliable strength across its 13 active coils, withstanding repeated compression cycles with a maximum load of 3.4 lbf without succumbing to fatigue.

We manufacture the 3917 design to provide a compression spring that is 1.63" long at rest and provides a consistent rate of 3.6 lbs/in along its recommended maximum of 0.95" deflection. For best results, your application should fully accommodate the inner (0.529") and outer (0.625") diameters of this spring and be designed for its closed end configuration.

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