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N-77 - 1.22 Inch, 28 Inch Pounds 302/304 Stainless Steel Compression Spring

Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours

Compression spring manufactured from 302/304 Stainless Steel with 6.2 coils and Closed & Ground ends. This spring features an O.D. of 0.609 Inch, an I.D. of 0.485 Inch, and a spring rate of 28 Inch Pounds.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name N-77
Ends Closed & Ground
Finish None
Free Length 1.22 in
Inside Diameter 0.485 in
Material 302/304 Stainless Steel
Outside Diameter 0.609 in
Part Type Standard
Rate 28 lbs/in
SKU N-77CS
Solid Length 0.386 in
Suggested Max Deflection 0.479 in
Suggested Max Load 13.4 lbf
Total Coils 6.2
Wire Diameter 0.0625 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name N-77
Ends Closed & Ground
Finish None
Free Length 30.99 mm
Inside Diameter 12.32 mm
Material 302/304 Stainless Steel
Outside Diameter 15.47 mm
Part Type Standard
Rate 4.9 N/mm
SKU N-77CS
Solid Length 9.8 mm
Suggested Max Deflection 12.17 mm
Suggested Max Load 59.6 N
Total Coils 6.2
Wire Diameter 1.59 mm
Stop compromising between power and size. The N-77 compression spring proves you can have both. This stainless steel spring packs a punch in a compact coil.

The N-77 is made from 302/304 stainless steel to resist corrosion, manufactured with closed & ground ends for smooth compression, and designed with a compact 1.22" free length to fit tight spaces. If you need robust compression in a small footprint, the N-77 delivers a powerful 13.4 pounds of force across 0.479" of deflection.

Engineers will love the substantial compression from its 0.0625 inch wire diameter. Hobbyists will appreciate the corrosion-resistant stainless steel construction. No matter what you need to compress, this little spring has the power to make it happen. Make your next project a success with the petite but powerful N-77 compression spring.