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Century Spring

NN-81CS - 0.88" 302/304 Stainless Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from 302/304 stainless steel with 36 coils and closed ends. This spring features an O.D. of 0.083", and an I.D. of 0.059".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name NN-81
Ends Closed
Finish None
Free Length 0.88 in
Inside Diameter 0.059 in
Material 302/304 Stainless Steel
Outside Diameter 0.083 in
Part Type Standard
Rate 2.2 lbs/in
SKU NN-81CS
Solid Length 0.44 in
Suggested Max Deflection 0.39 in
Suggested Max Load 0.84 lbf
Total Coils 36
Wire Diameter 0.012 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name NN-81
Ends Closed
Finish None
Free Length 22.35 mm
Inside Diameter 1.5 mm
Material 302/304 Stainless Steel
Outside Diameter 2.11 mm
Part Type Standard
Rate 0.39 N/mm
SKU NN-81CS
Solid Length 11.18 mm
Suggested Max Deflection 9.91 mm
Suggested Max Load 3.74 N
Total Coils 36
Wire Diameter 0.3 mm
The NN-81 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-81CS compression spring is designed with a free length of 1.63" total of 8.75 coils, and a rate of 211 lbs/in providing a balanced combination of flexibility and strength. This spring coil, and its open end configuration allows for efficient energy storage and release, making it suitable for applications requiring precise motion control.

The NN-81 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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