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11766CS - 3.81" Spring Steel Compression Spring

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Compression spring manufactured from spring steel with 24 coils and closed & ground ends. This spring features an O.D. of 0.5", and an I.D. of 0.354".

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 11766
Ends Closed & Ground
Finish Zinc
Free Length 3.81 in
Inside Diameter 0.354 in
Material Spring Steel
Outside Diameter 0.5 in
Part Type Standard
Rate 24 lbs/in
SKU 11766CS
Solid Length 1.75 in
Suggested Max Deflection 1.1 in
Suggested Max Load 26 lbf
Total Coils 24
Wire Diameter 0.073 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 11766
Ends Closed & Ground
Finish Zinc
Free Length 96.77 mm
Inside Diameter 8.99 mm
Material Spring Steel
Outside Diameter 12.7 mm
Part Type Standard
Rate 4.2 N/mm
SKU 11766CS
Solid Length 44.45 mm
Suggested Max Deflection 27.94 mm
Suggested Max Load 115.65 N
Total Coils 24
Wire Diameter 1.85 mm
The 11766CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.073" diameter spring steel, the 11766 spring design exhibits reliable strength across its 24 active coils, withstanding repeated compression cycles with a maximum load of 26 lbf without succumbing to fatigue.

We manufacture the 11766 design to provide a compression spring that is 3.81" long at rest and provides a consistent rate of 24 lbs/in along its recommended maximum of 1.1" deflection. For best results, your application should fully accommodate the inner (0.354") and outer (0.5") diameters of this spring and be designed for its closed & ground end configuration.