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Century Spring

66506SCS - 1.25" 316 Stainless Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from 316 stainless steel with 21 coils and closed ends. This spring features an O.D. of 0.172", and an I.D. of 0.122".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 66506S
Ends Closed
Finish Passivated
Free Length 1.25 in
Inside Diameter 0.122 in
Material 316 Stainless Steel
Outside Diameter 0.172 in
Part Type Standard
Rate 8.09 lbs/in
SKU 66506SCS
Solid Length 0.55 in
Suggested Max Deflection 0.338 in
Suggested Max Load 2.734 lbf
Total Coils 21
Wire Diameter 0.025 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 66506S
Ends Closed
Finish Passivated
Free Length 31.75 mm
Inside Diameter 3.1 mm
Material 316 Stainless Steel
Outside Diameter 4.37 mm
Part Type Standard
Rate 1.42 N/mm
SKU 66506SCS
Solid Length 13.97 mm
Suggested Max Deflection 8.59 mm
Suggested Max Load 12.16 N
Total Coils 21
Wire Diameter 0.64 mm
The 66506SCS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.025" diameter 316 stainless steel, the 66506S spring design exhibits reliable strength across its 21 active coils, withstanding repeated compression cycles with a maximum load of 2.734 lbf without succumbing to fatigue.

We manufacture the 66506S design to provide a compression spring that is 1.25" long at rest and provides a consistent rate of 8.09 lbs/in along its recommended maximum of 0.338" deflection. For best results, your application should fully accommodate the inner (0.122") and outer (0.172") diameters of this spring and be designed for its closed end configuration.

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