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Century Spring

I-78CS - 0.69" 302/304 Stainless Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from 302/304 stainless steel with 25 coils and closed ends. This spring features an O.D. of 0.219", and an I.D. of 0.191".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name I-78
Ends Closed
Finish None
Free Length 0.69 in
Inside Diameter 0.191 in
Material 302/304 Stainless Steel
Outside Diameter 0.219 in
Part Type Standard
Rate 0.24 lbs/in
SKU I-78CS
Solid Length 0.36 in
Suggested Max Deflection 0.32 in
Suggested Max Load 0.08 lbf
Total Coils 25
Wire Diameter 0.014 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name I-78
Ends Closed
Finish None
Free Length 17.53 mm
Inside Diameter 4.85 mm
Material 302/304 Stainless Steel
Outside Diameter 5.56 mm
Part Type Standard
Rate 0.04 N/mm
SKU I-78CS
Solid Length 9.14 mm
Suggested Max Deflection 8.13 mm
Suggested Max Load 0.36 N
Total Coils 25
Wire Diameter 0.36 mm
The I-78 compression spring is engineered for optimal performance in demanding applications. Constructed from high-quality 302/304 stainless steel and designed with precision and durability in mind, this spring is an essential component for a variety of mechanical systems where reliable force and resilience are paramount.

The I-78CS compression spring is designed with a free length of 1.31" total of 13.5 coils, and a rate of 32 lbs/in providing a balanced combination of flexibility and strength. This spring coil, and its closed & ground end configuration allows for efficient energy storage and release, making it suitable for applications requiring precise motion control.

The I-78 spring design is ideal for use in industrial machinery, automotive systems, and various mechanical assemblies where reliable force application is crucial. Its robust construction and thoughtful design make it a dependable choice for engineers seeking a high-performance spring solution.

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