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Century Spring

11257CS - 1.25" 302/304 Stainless Steel Compression Spring

Inventory Status
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Compression spring manufactured from 302/304 stainless steel with 10 coils and closed ends. This spring features an O.D. of 0.343", and an I.D. of 0.259".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 11257
Ends Closed
Finish None
Free Length 1.25 in
Inside Diameter 0.259 in
Material 302/304 Stainless Steel
Outside Diameter 0.343 in
Part Type Standard
Rate 18 lbs/in
SKU 11257CS
Solid Length 0.46 in
Suggested Max Deflection 0.42 in
Suggested Max Load 7.7 lbf
Total Coils 10
Wire Diameter 0.042 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 11257
Ends Closed
Finish None
Free Length 31.75 mm
Inside Diameter 6.58 mm
Material 302/304 Stainless Steel
Outside Diameter 8.71 mm
Part Type Standard
Rate 3.15 N/mm
SKU 11257CS
Solid Length 11.68 mm
Suggested Max Deflection 10.67 mm
Suggested Max Load 34.25 N
Total Coils 10
Wire Diameter 1.07 mm
The 11257CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.042" diameter 302/304 stainless steel, the 11257 spring design exhibits reliable strength across its 10 active coils, withstanding repeated compression cycles with a maximum load of 7.7 lbf without succumbing to fatigue.

We manufacture the 11257 design to provide a compression spring that is 1.25" long at rest and provides a consistent rate of 18 lbs/in along its recommended maximum of 0.42" deflection. For best results, your application should fully accommodate the inner (0.259") and outer (0.343") diameters of this spring and be designed for its closed end configuration.

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