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S-1631CS - 3.28" 302/304 Stainless Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from 302/304 stainless steel with 12.5 coils and closed & ground ends. This spring features an O.D. of 0.843", and an I.D. of 0.649".

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name S-1631
Ends Closed & Ground
Finish None
Free Length 3.28 in
Inside Diameter 0.649 in
Material 302/304 Stainless Steel
Outside Diameter 0.843 in
Part Type Standard
Rate 26 lbs/in
SKU S-1631CS
Solid Length 1.21 in
Suggested Max Deflection 1.3 in
Suggested Max Load 33 lbf
Total Coils 12.5
Wire Diameter 0.097 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name S-1631
Ends Closed & Ground
Finish None
Free Length 83.31 mm
Inside Diameter 16.48 mm
Material 302/304 Stainless Steel
Outside Diameter 21.41 mm
Part Type Standard
Rate 4.55 N/mm
SKU S-1631CS
Solid Length 30.73 mm
Suggested Max Deflection 33.02 mm
Suggested Max Load 146.78 N
Total Coils 12.5
Wire Diameter 2.46 mm
The S-1631CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.097" diameter 302/304 stainless steel, the S-1631 spring design exhibits reliable strength across its 12.5 active coils, withstanding repeated compression cycles with a maximum load of 33 lbf without succumbing to fatigue.

We manufacture the S-1631 design to provide a compression spring that is 3.28" long at rest and provides a consistent rate of 26 lbs/in along its recommended maximum of 1.3" deflection. For best results, your application should fully accommodate the inner (0.649") and outer (0.843") diameters of this spring and be designed for its closed & ground end configuration.