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S-903CS - 0.78" 302/304 Stainless Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from 302/304 stainless steel with 3.75 coils and closed & ground ends. This spring features an O.D. of 1.172", and an I.D. of 1.012".

NOTE: The spring rate value for compression springs with 4 coils or less is a reference value.

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name S-903
Ends Closed & Ground
Finish None
Free Length 0.78 in
Inside Diameter 1.012 in
Material 302/304 Stainless Steel
Outside Diameter 1.172 in
Part Type Standard
Rate 23 lbs/in
SKU S-903CS
Solid Length 0.3 in
Suggested Max Deflection 0.48 in
Suggested Max Load 11 lbf
Total Coils 3.75
Wire Diameter 0.08 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name S-903
Ends Closed & Ground
Finish None
Free Length 19.81 mm
Inside Diameter 25.7 mm
Material 302/304 Stainless Steel
Outside Diameter 29.77 mm
Part Type Standard
Rate 4.03 N/mm
SKU S-903CS
Solid Length 7.62 mm
Suggested Max Deflection 12.19 mm
Suggested Max Load 48.93 N
Total Coils 3.75
Wire Diameter 2.03 mm
The compression spring S-903CS is an essential component designed for applications requiring reliable force and energy storage. Crafted from high-quality 302/304 stainless steel, the S-903 compression spring design exhibits exceptional tensile strength and resilience.

The S-903 design is manufactured with a free length of 0.78", with an outer diameter of 1.172", an inner diameter of 1.012", and a total of 3.75 coils, expertly designed to deliver consistent compression characteristics including a rate of 23 lbs/in.

The S-903CS compression spring is ideally suited for use in a wide range of mechanical assemblies, including but not limited to automotive suspension systems, industrial machinery, and electronic devices.

In summary, the compression spring S-903 design stands out for its superior material properties, thoughtful design, and versatility in application. It is a prime choice for engineers committed to excellence and innovation in their projects.