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Century Spring

YY-68CS - 0.31" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 3 coils and closed & ground ends. This spring features an O.D. of 0.546", and an I.D. of 0.421".

NOTE: The spring rate value for compression springs with 4 coils or less is a reference value.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name YY-68
Ends Closed & Ground
Finish Zinc
Free Length 0.31 in
Inside Diameter 0.421 in
Material Spring Steel
Outside Diameter 0.546 in
Part Type Standard
Rate 187 lbs/in
SKU YY-68CS
Solid Length 0.19 in
Suggested Max Deflection 0.08 in
Suggested Max Load 16 lbf
Total Coils 3
Wire Diameter 0.0625 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name YY-68
Ends Closed & Ground
Finish Zinc
Free Length 7.87 mm
Inside Diameter 10.69 mm
Material Spring Steel
Outside Diameter 13.87 mm
Part Type Standard
Rate 32.74 N/mm
SKU YY-68CS
Solid Length 4.83 mm
Suggested Max Deflection 2.03 mm
Suggested Max Load 71.17 N
Total Coils 3
Wire Diameter 1.59 mm
The YY-68CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.0625" diameter spring steel, the YY-68 spring design exhibits reliable strength across its 3 active coils, withstanding repeated compression cycles with a maximum load of 16 lbf without succumbing to fatigue.

We manufacture the YY-68 design to provide a compression spring that is 0.31" long at rest and provides a consistent rate of 187 lbs/in along its recommended maximum of 0.08" deflection. For best results, your application should fully accommodate the inner (0.421") and outer (0.546") diameters of this spring and be designed for its closed & ground end configuration.

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