91ÖÆÆ¬³§

This browser is no longer supported. Upgrade to Microsoft Edge or switch to a supported browser, like Chrome, Safari, or Firefox, to explore the Components website.

We're sorry for the inconvenience.

1521 - 5.5 Inch Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from Spring Steel with 27 coils and Closed & Ground ends. This spring features an O.D. of 0.593 Inch, and an I.D. of 0.411 Inch.

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 1521
Ends Closed & Ground
Finish Zinc
Free Length 5.5 in
Inside Diameter 0.411 in
Material Spring Steel
Outside Diameter 0.593 in
Part Type Standard
Rate 31 lbs/in
SKU 1521CS
Solid Length 2.46 in
Suggested Max Deflection 1.3 in
Suggested Max Load 40 lbf
Total Coils 27
Wire Diameter 0.091 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 1521
Ends Closed & Ground
Finish Zinc
Free Length 139.7 mm
Inside Diameter 10.44 mm
Material Spring Steel
Outside Diameter 15.06 mm
Part Type Standard
Rate 5.43 N/mm
SKU 1521CS
Solid Length 62.48 mm
Suggested Max Deflection 33.02 mm
Suggested Max Load 177.92 N
Total Coils 27
Wire Diameter 2.31 mm
The 1521CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.091" diameter hard drawn, the 1521 spring design exhibits reliable strength across its 27 active coils, withstanding repeated compression cycles with a maximum load of 40 lbf without succumbing to fatigue.

We manufacture the 1521 design to provide a compression spring that is 5.5" long at rest and provides a consistent rate of 31 lbs/in along its recommended maximum of 1.3" deflection. For best results, your application should fully accommodate the inner (0.411") and outer (0.593") diameters of this spring and be designed for its closed & ground end configuration.