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FF-28 - 0.81 Inch, 3.4 Inch Pounds Music Wire Compression Spring

Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours

Compression spring manufactured from Music Wire with 9 coils and Closed ends. This spring features an O.D. of 0.266 Inch, an I.D. of 0.222 Inch, and a spring rate of 3.4 Inch Pounds.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name FF-28
Ends Closed
Finish Zinc
Free Length 0.81 in
Inside Diameter 0.222 in
Material Music Wire
Outside Diameter 0.266 in
Part Type Standard
Rate 3.4 lbs/in
SKU FF-28CS
Solid Length 0.22 in
Suggested Max Deflection 0.59 in
Suggested Max Load 2 lbf
Total Coils 9
Wire Diameter 0.022 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name FF-28
Ends Closed
Finish Zinc
Free Length 20.57 mm
Inside Diameter 5.64 mm
Material Music Wire
Outside Diameter 6.76 mm
Part Type Standard
Rate 0.6 N/mm
SKU FF-28CS
Solid Length 5.59 mm
Suggested Max Deflection 14.99 mm
Suggested Max Load 8.9 N
Total Coils 9
Wire Diameter 0.56 mm

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