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Century Spring

66331SCS - 0.31" 316 Stainless Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from 316 stainless steel with 14.3 coils and closed ends. This spring features an O.D. of 0.156", and an I.D. of 0.142".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 66331S
Ends Closed
Finish Passivated
Free Length 0.31 in
Inside Diameter 0.142 in
Material 316 Stainless Steel
Outside Diameter 0.156 in
Part Type Standard
Rate 0.074 lbs/in
SKU 66331SCS
Solid Length 0.107 in
Suggested Max Deflection 0.203 in
Suggested Max Load 0.015 lbf
Total Coils 14.3
Wire Diameter 0.007 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 66331S
Ends Closed
Finish Passivated
Free Length 7.87 mm
Inside Diameter 3.61 mm
Material 316 Stainless Steel
Outside Diameter 3.96 mm
Part Type Standard
Rate 0.01 N/mm
SKU 66331SCS
Solid Length 2.72 mm
Suggested Max Deflection 5.16 mm
Suggested Max Load 0.07 N
Total Coils 14.3
Wire Diameter 0.18 mm
The 66331SCS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.007" diameter 316 stainless steel, the 66331S spring design exhibits reliable strength across its 14.3 active coils, withstanding repeated compression cycles with a maximum load of 0.015 lbf without succumbing to fatigue.

We manufacture the 66331S design to provide a compression spring that is 0.31" long at rest and provides a consistent rate of 0.074 lbs/in along its recommended maximum of 0.203" deflection. For best results, your application should fully accommodate the inner (0.142") and outer (0.156") diameters of this spring and be designed for its closed end configuration.

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