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S-1381CS - 0.44" 302/304 Stainless Steel Compression Spring

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Compression spring manufactured from 302/304 stainless steel with 4 coils and closed & ground ends. This spring features an O.D. of 0.718", and an I.D. of 0.616".

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 S-1381
Ends Closed & Ground
Finish None
Free Length 0.44 in
Inside Diameter 0.616 in
Material 302/304 Stainless Steel
Outside Diameter 0.718 in
Part Type Standard
Rate 14 lbs/in
SKU S-1381CS
Solid Length 0.2 in
Suggested Max Deflection 0.23 in
Suggested Max Load 3.3 lbf
Total Coils 4
Wire Diameter 0.051 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name S-1381
Ends Closed & Ground
Finish None
Free Length 11.18 mm
Inside Diameter 15.65 mm
Material 302/304 Stainless Steel
Outside Diameter 18.24 mm
Part Type Standard
Rate 2.45 N/mm
SKU S-1381CS
Solid Length 5.08 mm
Suggested Max Deflection 5.84 mm
Suggested Max Load 14.68 N
Total Coils 4
Wire Diameter 1.3 mm
The S-1381 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 S-1381CS compression spring is designed with a free length of 0.5" total of 7 coils, and a rate of 9.9 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 S-1381 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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