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Century Spring

72729SCS - 1" 302/304 Stainless Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from 302/304 stainless steel with 4 coils and closed & ground ends. This spring features an O.D. of 1.225", and an I.D. of 0.901".

NOTE: The spring rate value for compression springs with 4 coils or less is a reference value.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 72729S
Ends Closed & Ground
Finish None
Free Length 1 in
Inside Diameter 0.901 in
Material 302/304 Stainless Steel
Outside Diameter 1.225 in
Part Type Standard
Rate 352 lbs/in
SKU 72729SCS
Solid Length 0.65 in
Suggested Max Deflection 0.26 in
Suggested Max Load 91 lbf
Total Coils 4
Wire Diameter 0.162 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 72729S
Ends Closed & Ground
Finish None
Free Length 25.4 mm
Inside Diameter 22.89 mm
Material 302/304 Stainless Steel
Outside Diameter 31.12 mm
Part Type Standard
Rate 61.64 N/mm
SKU 72729SCS
Solid Length 16.51 mm
Suggested Max Deflection 6.6 mm
Suggested Max Load 404.77 N
Total Coils 4
Wire Diameter 4.11 mm
The 72729SCS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.162" diameter 302/304 stainless steel, the 72729S spring design exhibits reliable strength across its 4 active coils, withstanding repeated compression cycles with a maximum load of 91 lbf without succumbing to fatigue.

We manufacture the 72729S design to provide a compression spring that is 1" long at rest and provides a consistent rate of 352 lbs/in along its recommended maximum of 0.26" deflection. For best results, your application should fully accommodate the inner (0.901") and outer (1.225") diameters of this spring and be designed for its closed & ground end configuration.

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