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Century Spring

72780SCS - 4.25" 302/304 Stainless Steel Compression Spring

Inventory Status
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Compression spring manufactured from 302/304 stainless steel with 11.5 coils and closed & ground ends. This spring features an O.D. of 1.4", and an I.D. of 1.046".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 72780S
Ends Closed & Ground
Finish None
Free Length 4.25 in
Inside Diameter 1.046 in
Material 302/304 Stainless Steel
Outside Diameter 1.4 in
Part Type Standard
Rate 69 lbs/in
SKU 72780SCS
Solid Length 2.04 in
Suggested Max Deflection 1.5 in
Suggested Max Load 104 lbf
Total Coils 11.5
Wire Diameter 0.177 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 72780S
Ends Closed & Ground
Finish None
Free Length 107.95 mm
Inside Diameter 26.57 mm
Material 302/304 Stainless Steel
Outside Diameter 35.56 mm
Part Type Standard
Rate 12.08 N/mm
SKU 72780SCS
Solid Length 51.82 mm
Suggested Max Deflection 38.1 mm
Suggested Max Load 462.59 N
Total Coils 11.5
Wire Diameter 4.5 mm
The 72780SCS 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 302/304 stainless steel, the 72780S spring design exhibits reliable strength across its 11.5 active coils, withstanding repeated compression cycles with a maximum load of 104 lbf without succumbing to fatigue.

We manufacture the 72780S design to provide a compression spring that is 4.25" long at rest and provides a consistent rate of 69 lbs/in along its recommended maximum of 1.5" deflection. For best results, your application should fully accommodate the inner (1.046") and outer (1.4") diameters of this spring and be designed for its closed & ground end configuration.

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