A11-9CS - 1.34" Phosphor Bronze Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from phosphor bronze with 21.5 coils and closed ends. This spring features an O.D. of 0.188", and an I.D. of 0.134".

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name A11-9
Ends Closed
Finish None
Free Length 1.34 in
Inside Diameter 0.134 in
Material Phosphor Bronze
Outside Diameter 0.188 in
Part Type Standard
Rate 6.5 lbs/in
SKU A11-9CS
Solid Length 0.5 in
Suggested Max Deflection 0.63 in
Suggested Max Load 4.1 lbf
Total Coils 21.5
Wire Diameter 0.0285 in
The A11-9CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.0285" diameter phosphor bronze, the A11-9 spring design exhibits reliable strength across its 21.5 active coils, withstanding repeated compression cycles with a maximum load of 4.1 lbf without succumbing to fatigue.

We manufacture the A11-9 design to provide a compression spring that is 1.34" long at rest and provides a consistent rate of 6.5 lbs/in along its recommended maximum of 0.63" deflection. For best results, your application should fully accommodate the inner (0.134") and outer (0.188") diameters of this spring and be designed for its closed end configuration.