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4156 - 3.5 Inch Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from Spring Steel with 11.5 coils and Closed ends. This spring features an O.D. of 0.625 Inch, and an I.D. of 0.531 Inch.

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 4156
Ends Closed
Finish Gold Iridite
Free Length 3.5 in
Inside Diameter 0.531 in
Material Spring Steel
Outside Diameter 0.625 in
Part Type Standard
Rate 3.8 lbs/in
SKU 4156CS
Solid Length 0.59 in
Suggested Max Deflection 1.7 in
Suggested Max Load 6.5 lbf
Total Coils 11.5
Wire Diameter 0.047 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 4156
Ends Closed
Finish Gold Iridite
Free Length 88.9 mm
Inside Diameter 13.49 mm
Material Spring Steel
Outside Diameter 15.88 mm
Part Type Standard
Rate 0.67 N/mm
SKU 4156CS
Solid Length 14.99 mm
Suggested Max Deflection 43.18 mm
Suggested Max Load 28.91 N
Total Coils 11.5
Wire Diameter 1.19 mm
The 4156CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.047" diameter hard drawn, the 4156 spring design exhibits reliable strength across its 11.5 active coils, withstanding repeated compression cycles with a maximum load of 6.5 lbf without succumbing to fatigue.

We manufacture the 4156 design to provide a compression spring that is 3.5" long at rest and provides a consistent rate of 3.8 lbs/in along its recommended maximum of 1.7" deflection. For best results, your application should fully accommodate the inner (0.531") and outer (0.625") diameters of this spring and be designed for its closed end configuration.