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Century Spring

11308CS - 5.75" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 11 coils and closed & ground ends. This spring features an O.D. of 1.39", and an I.D. of 1.23".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 11308
Ends Closed & Ground
Finish Zinc
Free Length 5.75 in
Inside Diameter 1.23 in
Material Spring Steel
Outside Diameter 1.39 in
Part Type Standard
Rate 2.9 lbs/in
SKU 11308CS
Solid Length 0.88 in
Suggested Max Deflection 4.4 in
Suggested Max Load 13 lbf
Total Coils 11
Wire Diameter 0.08 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 11308
Ends Closed & Ground
Finish Zinc
Free Length 146.05 mm
Inside Diameter 31.24 mm
Material Spring Steel
Outside Diameter 35.31 mm
Part Type Standard
Rate 0.51 N/mm
SKU 11308CS
Solid Length 22.35 mm
Suggested Max Deflection 111.76 mm
Suggested Max Load 57.82 N
Total Coils 11
Wire Diameter 2.03 mm
The 11308CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.08" diameter spring steel, the 11308 spring design exhibits reliable strength across its 11 active coils, withstanding repeated compression cycles with a maximum load of 13 lbf without succumbing to fatigue.

We manufacture the 11308 design to provide a compression spring that is 5.75" long at rest and provides a consistent rate of 2.9 lbs/in along its recommended maximum of 4.4" deflection. For best results, your application should fully accommodate the inner (1.23") and outer (1.39") diameters of this spring and be designed for its closed & ground end configuration.

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