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S-778CS - 1.75" 302/304 Stainless Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from 302/304 stainless steel with 6.9 coils and closed ends. This spring features an O.D. of 0.75", and an I.D. of 0.624".

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name S-778
Ends Closed
Finish None
Free Length 1.75 in
Inside Diameter 0.624 in
Material 302/304 Stainless Steel
Outside Diameter 0.75 in
Part Type Standard
Rate 12 lbs/in
SKU S-778CS
Solid Length 0.493 in
Suggested Max Deflection 0.916 in
Suggested Max Load 11 lbf
Total Coils 6.9
Wire Diameter 0.0625 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name S-778
Ends Closed
Finish None
Free Length 44.45 mm
Inside Diameter 15.85 mm
Material 302/304 Stainless Steel
Outside Diameter 19.05 mm
Part Type Standard
Rate 2.1 N/mm
SKU S-778CS
Solid Length 12.52 mm
Suggested Max Deflection 23.27 mm
Suggested Max Load 48.93 N
Total Coils 6.9
Wire Diameter 1.59 mm
The S-778CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.0625" diameter 302/304 stainless steel, the S-778 spring design exhibits reliable strength across its 6.9 active coils, withstanding repeated compression cycles with a maximum load of 11 lbf without succumbing to fatigue.

We manufacture the S-778 design to provide a compression spring that is 1.75" long at rest and provides a consistent rate of 12 lbs/in along its recommended maximum of 0.916" deflection. For best results, your application should fully accommodate the inner (0.624") and outer (0.75") diameters of this spring and be designed for its closed end configuration.