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Century Spring

K-99CS - 1.81" Spring Steel Compression Spring

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Compression spring manufactured from spring steel with 16 coils and closed & ground ends. This spring features an O.D. of 0.5", and an I.D. of 0.356".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name K-99
Ends Closed & Ground
Finish Gold Iridite
Free Length 1.81 in
Inside Diameter 0.356 in
Material Spring Steel
Outside Diameter 0.5 in
Part Type Standard
Rate 35 lbs/in
SKU K-99CS
Solid Length 1.15 in
Suggested Max Load 23 lbf
Total Coils 16
Wire Diameter 0.072 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name K-99
Ends Closed & Ground
Finish Gold Iridite
Free Length 45.97 mm
Inside Diameter 9.04 mm
Material Spring Steel
Outside Diameter 12.7 mm
Part Type Standard
Rate 6.13 N/mm
SKU K-99CS
Solid Length 29.21 mm
Suggested Max Load 102.3 N
Total Coils 16
Wire Diameter 1.83 mm
The K-99CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.072" diameter spring steel, the K-99 spring design exhibits reliable strength across its 16 active coils, withstanding repeated compression cycles with a maximum load of 23 lbf without succumbing to fatigue.

We manufacture the K-99 design to provide a compression spring that is 1.81" long at rest and provides a consistent rate of 35 lbs/in along its recommended maximum of 0.66" deflection. For best results, your application should fully accommodate the inner (0.356") and outer (0.5") diameters of this spring and be designed for its closed & ground end configuration.

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