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Century Spring

73538CS - 8" Oil Tempered Compression Spring

Inventory Status
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Compression spring manufactured from oil tempered with 7.86 coils and closed & ground ends. This spring features an O.D. of 4.406", and an I.D. of 3.532".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 73538
Ends Closed & Ground
Finish None
Free Length 8 in
Inside Diameter 3.532 in
Material Oil Tempered
Outside Diameter 4.406 in
Part Type Standard
Rate 143 lbs/in
SKU 73538CS
Solid Length 3.44 in
Suggested Max Deflection 3.6 in
Suggested Max Load 515 lbf
Total Coils 7.86
Wire Diameter 0.437 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 73538
Ends Closed & Ground
Finish None
Free Length 203.2 mm
Inside Diameter 89.71 mm
Material Oil Tempered
Outside Diameter 111.91 mm
Part Type Standard
Rate 25.04 N/mm
SKU 73538CS
Solid Length 87.38 mm
Suggested Max Deflection 91.44 mm
Suggested Max Load 2290.72 N
Total Coils 7.86
Wire Diameter 11.1 mm
The 73538CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.437" diameter oil tempered, the 73538 spring design exhibits reliable strength across its 7.86 active coils, withstanding repeated compression cycles with a maximum load of 515 lbf without succumbing to fatigue.

We manufacture the 73538 design to provide a compression spring that is 8" long at rest and provides a consistent rate of 143 lbs/in along its recommended maximum of 3.6" deflection. For best results, your application should fully accommodate the inner (3.532") and outer (4.406") diameters of this spring and be designed for its closed & ground end configuration.

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