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Century Spring

DD-28CS - 0.31" 302/304 Stainless Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from 302/304 stainless steel with 3 coils and closed & ground ends. This spring features an O.D. of 0.468", and an I.D. of 0.288".

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 DD-28
Ends Closed & Ground
Finish None
Free Length 0.31 in
Inside Diameter 0.288 in
Material 302/304 Stainless Steel
Outside Diameter 0.468 in
Part Type Standard
Rate 1549 lbs/in
SKU DD-28CS
Solid Length 0.27 in
Suggested Max Deflection 0.03 in
Suggested Max Load 44 lbf
Total Coils 3
Wire Diameter 0.09 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name DD-28
Ends Closed & Ground
Finish None
Free Length 7.87 mm
Inside Diameter 7.32 mm
Material 302/304 Stainless Steel
Outside Diameter 11.89 mm
Part Type Standard
Rate 271.23 N/mm
SKU DD-28CS
Solid Length 6.86 mm
Suggested Max Deflection 0.76 mm
Suggested Max Load 195.71 N
Total Coils 3
Wire Diameter 2.29 mm
The DD-28CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.09" diameter 302/304 stainless steel, the DD-28 spring design exhibits reliable strength across its 3 active coils, withstanding repeated compression cycles with a maximum load of 44 lbf without succumbing to fatigue.

We manufacture the DD-28 design to provide a compression spring that is 0.31" long at rest and provides a consistent rate of 1549 lbs/in along its recommended maximum of 0.03" deflection. For best results, your application should fully accommodate the inner (0.288") and outer (0.468") diameters of this spring and be designed for its closed & ground end configuration.

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