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11666CS - 9.5" Spring Steel Compression Spring

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Compression spring manufactured from spring steel with 84 coils and closed & ground ends. This spring features an O.D. of 0.42", and an I.D. of 0.322".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 11666
Ends Closed & Ground
Finish Gold Iridite
Free Length 9.5 in
Inside Diameter 0.322 in
Material Spring Steel
Outside Diameter 0.42 in
Part Type Standard
Rate 2 lbs/in
SKU 11666CS
Solid Length 4.12 in
Suggested Max Deflection 5.4 in
Suggested Max Load 11 lbf
Total Coils 84
Wire Diameter 0.049 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 11666
Ends Closed & Ground
Finish Gold Iridite
Free Length 241.3 mm
Inside Diameter 8.18 mm
Material Spring Steel
Outside Diameter 10.67 mm
Part Type Standard
Rate 0.35 N/mm
SKU 11666CS
Solid Length 104.65 mm
Suggested Max Deflection 137.16 mm
Suggested Max Load 48.93 N
Total Coils 84
Wire Diameter 1.24 mm
The 11666CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.049" diameter spring steel, the 11666 spring design exhibits reliable strength across its 84 active coils, withstanding repeated compression cycles with a maximum load of 11 lbf without succumbing to fatigue.

We manufacture the 11666 design to provide a compression spring that is 9.5" long at rest and provides a consistent rate of 2 lbs/in along its recommended maximum of 5.4" deflection. For best results, your application should fully accommodate the inner (0.322") and outer (0.42") diameters of this spring and be designed for its closed & ground end configuration.

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