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S-981CS - 1.28" 302/304 Stainless Steel Compression Spring

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Compression spring manufactured from 302/304 stainless steel with 4.5 coils and closed & ground ends. This spring features an O.D. of 1.203", and an I.D. of 0.933".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name S-981
Ends Closed & Ground
Finish None
Free Length 1.28 in
Inside Diameter 0.933 in
Material 302/304 Stainless Steel
Outside Diameter 1.203 in
Part Type Standard
Rate 136 lbs/in
SKU S-981CS
Solid Length 0.61 in
Suggested Max Deflection 0.41 in
Suggested Max Load 56 lbf
Total Coils 4.5
Wire Diameter 0.135 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name S-981
Ends Closed & Ground
Finish None
Free Length 32.51 mm
Inside Diameter 23.7 mm
Material 302/304 Stainless Steel
Outside Diameter 30.56 mm
Part Type Standard
Rate 23.81 N/mm
SKU S-981CS
Solid Length 15.49 mm
Suggested Max Deflection 10.41 mm
Suggested Max Load 249.09 N
Total Coils 4.5
Wire Diameter 3.43 mm
The S-981CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.135" diameter 302/304 stainless steel, the S-981 spring design exhibits reliable strength across its 4.5 active coils, withstanding repeated compression cycles with a maximum load of 56 lbf without succumbing to fatigue.

We manufacture the S-981 design to provide a compression spring that is 1.28" long at rest and provides a consistent rate of 136 lbs/in along its recommended maximum of 0.41" deflection. For best results, your application should fully accommodate the inner (0.933") and outer (1.203") diameters of this spring and be designed for its closed & ground end configuration.

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