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72725CS - 3.75" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 11.6 coils and closed & ground ends. This spring features an O.D. of 1.225", and an I.D. of 0.913".

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 72725
Ends Closed & Ground
Finish None
Free Length 3.75 in
Inside Diameter 0.913 in
Material Music Wire
Outside Diameter 1.225 in
Part Type Standard
Rate 72 lbs/in
SKU 72725CS
Solid Length 1.81 in
Suggested Max Deflection 1.8 in
Suggested Max Load 128 lbf
Total Coils 11.6
Wire Diameter 0.156 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 72725
Ends Closed & Ground
Finish None
Free Length 95.25 mm
Inside Diameter 23.19 mm
Material Music Wire
Outside Diameter 31.12 mm
Part Type Standard
Rate 12.61 N/mm
SKU 72725CS
Solid Length 45.97 mm
Suggested Max Deflection 45.72 mm
Suggested Max Load 569.34 N
Total Coils 11.6
Wire Diameter 3.96 mm
The 72725CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.156" diameter music wire, the 72725 spring design exhibits reliable strength across its 11.6 active coils, withstanding repeated compression cycles with a maximum load of 128 lbf without succumbing to fatigue.

We manufacture the 72725 design to provide a compression spring that is 3.75" long at rest and provides a consistent rate of 72 lbs/in along its recommended maximum of 1.8" deflection. For best results, your application should fully accommodate the inner (0.913") and outer (1.225") diameters of this spring and be designed for its closed & ground end configuration.