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S-109CS - 3" 302/304 Stainless Steel Compression Spring

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Compression spring manufactured from 302/304 stainless steel with 9.5 coils and closed & ground ends. This spring features an O.D. of 1.515", and an I.D. of 1.015".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name S-109
Ends Closed & Ground
Finish None
Free Length 3 in
Inside Diameter 1.015 in
Material 302/304 Stainless Steel
Outside Diameter 1.515 in
Part Type Standard
Rate 322 lbs/in
SKU S-109CS
Solid Length 2.38 in
Suggested Max Deflection 0.63 in
Suggested Max Load 201 lbf
Total Coils 9.5
Wire Diameter 0.25 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name S-109
Ends Closed & Ground
Finish None
Free Length 76.2 mm
Inside Diameter 25.78 mm
Material 302/304 Stainless Steel
Outside Diameter 38.48 mm
Part Type Standard
Rate 56.38 N/mm
SKU S-109CS
Solid Length 60.45 mm
Suggested Max Deflection 16 mm
Suggested Max Load 894.05 N
Total Coils 9.5
Wire Diameter 6.35 mm
The S-109 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-109CS compression spring is designed with a free length of 1.56" total of 15.7 coils, and a rate of 18 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-109 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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