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NN-56CS - 1.69" 302/304 Stainless Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from 302/304 stainless steel with 11 coils and closed & ground ends. This spring features an O.D. of 0.578", and an I.D. of 0.398".

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name NN-56
Ends Closed & Ground
Finish None
Free Length 1.69 in
Inside Diameter 0.398 in
Material 302/304 Stainless Steel
Outside Diameter 0.578 in
Part Type Standard
Rate 80 lbs/in
SKU NN-56CS
Solid Length 0.99 in
Suggested Max Deflection 0.46 in
Suggested Max Load 37 lbf
Total Coils 11
Wire Diameter 0.09 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name NN-56
Ends Closed & Ground
Finish None
Free Length 42.93 mm
Inside Diameter 10.11 mm
Material 302/304 Stainless Steel
Outside Diameter 14.68 mm
Part Type Standard
Rate 14.01 N/mm
SKU NN-56CS
Solid Length 25.15 mm
Suggested Max Deflection 11.68 mm
Suggested Max Load 164.58 N
Total Coils 11
Wire Diameter 2.29 mm
The NN-56 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 NN-56CS compression spring is designed with a free length of 1.03" total of 17 coils, and a rate of 3.3 lbs/in providing a balanced combination of flexibility and strength. This spring coil, and its closed end configuration allows for efficient energy storage and release, making it suitable for applications requiring precise motion control.

The NN-56 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.