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Century Spring

11287CS - 4.5" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 26.5 coils and closed ends. This spring features an O.D. of 0.562", and an I.D. of 0.448".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 11287
Ends Closed
Finish Zinc
Free Length 4.5 in
Inside Diameter 0.448 in
Material Spring Steel
Outside Diameter 0.562 in
Part Type Standard
Rate 4.8 lbs/in
SKU 11287CS
Solid Length 1.57 in
Suggested Max Deflection 2.5 in
Suggested Max Load 12 lbf
Total Coils 26.5
Wire Diameter 0.057 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 11287
Ends Closed
Finish Zinc
Free Length 114.3 mm
Inside Diameter 11.38 mm
Material Spring Steel
Outside Diameter 14.27 mm
Part Type Standard
Rate 0.84 N/mm
SKU 11287CS
Solid Length 39.88 mm
Suggested Max Deflection 63.5 mm
Suggested Max Load 53.38 N
Total Coils 26.5
Wire Diameter 1.45 mm
The 11287CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.057" diameter spring steel, the 11287 spring design exhibits reliable strength across its 26.5 active coils, withstanding repeated compression cycles with a maximum load of 12 lbf without succumbing to fatigue.

We manufacture the 11287 design to provide a compression spring that is 4.5" long at rest and provides a consistent rate of 4.8 lbs/in along its recommended maximum of 2.5" deflection. For best results, your application should fully accommodate the inner (0.448") and outer (0.562") diameters of this spring and be designed for its closed end configuration.

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