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Century Spring

72749CS - 4.5" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 14.5 coils and closed & ground ends. This spring features an O.D. of 1.225", and an I.D. of 0.871".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 72749
Ends Closed & Ground
Finish None
Free Length 4.5 in
Inside Diameter 0.871 in
Material Music Wire
Outside Diameter 1.225 in
Part Type Standard
Rate 98 lbs/in
SKU 72749CS
Solid Length 2.57 in
Suggested Max Deflection 1.9 in
Suggested Max Load 185 lbf
Total Coils 14.5
Wire Diameter 0.177 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 72749
Ends Closed & Ground
Finish None
Free Length 114.3 mm
Inside Diameter 22.12 mm
Material Music Wire
Outside Diameter 31.12 mm
Part Type Standard
Rate 17.16 N/mm
SKU 72749CS
Solid Length 65.28 mm
Suggested Max Deflection 48.26 mm
Suggested Max Load 822.88 N
Total Coils 14.5
Wire Diameter 4.5 mm
The 72749CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.177" diameter music wire, the 72749 spring design exhibits reliable strength across its 14.5 active coils, withstanding repeated compression cycles with a maximum load of 185 lbf without succumbing to fatigue.

We manufacture the 72749 design to provide a compression spring that is 4.5" long at rest and provides a consistent rate of 98 lbs/in along its recommended maximum of 1.9" deflection. For best results, your application should fully accommodate the inner (0.871") and outer (1.225") diameters of this spring and be designed for its closed & ground end configuration.

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