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Century Spring

72439CS - 4" Music Wire Compression Spring

Inventory Status
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Compression spring manufactured from music wire with 14.3 coils and closed & ground ends. This spring features an O.D. of 0.975", and an I.D. of 0.751".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 72439
Ends Closed & Ground
Finish None
Free Length 4 in
Inside Diameter 0.751 in
Material Music Wire
Outside Diameter 0.975 in
Part Type Standard
Rate 29 lbs/in
SKU 72439CS
Solid Length 1.6 in
Suggested Max Deflection 2.2 in
Suggested Max Load 63 lbf
Total Coils 14.3
Wire Diameter 0.112 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 72439
Ends Closed & Ground
Finish None
Free Length 101.6 mm
Inside Diameter 19.08 mm
Material Music Wire
Outside Diameter 24.77 mm
Part Type Standard
Rate 5.08 N/mm
SKU 72439CS
Solid Length 40.64 mm
Suggested Max Deflection 55.88 mm
Suggested Max Load 280.22 N
Total Coils 14.3
Wire Diameter 2.84 mm
The 72439CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.112" diameter music wire, the 72439 spring design exhibits reliable strength across its 14.3 active coils, withstanding repeated compression cycles with a maximum load of 63 lbf without succumbing to fatigue.

We manufacture the 72439 design to provide a compression spring that is 4" long at rest and provides a consistent rate of 29 lbs/in along its recommended maximum of 2.2" deflection. For best results, your application should fully accommodate the inner (0.751") and outer (0.975") diameters of this spring and be designed for its closed & ground end configuration.

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