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A-40 - 1.25 Inch, 3.7 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 13 coils and Closed ends. This spring features an O.D. of 0.266 Inch, an I.D. of 0.216 Inch, and a spring rate of 3.7 Inch Pounds.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name A-40
Ends Closed
Finish Zinc
Free Length 1.25 in
Inside Diameter 0.216 in
Material Music Wire
Outside Diameter 0.266 in
Part Type Standard
Rate 3.7 lbs/in
SKU A-40CS
Solid Length 0.35 in
Suggested Max Deflection 0.89 in
Suggested Max Load 3.3 lbf
Total Coils 13
Wire Diameter 0.025 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name A-40
Ends Closed
Finish Zinc
Free Length 31.75 mm
Inside Diameter 5.49 mm
Material Music Wire
Outside Diameter 6.76 mm
Part Type Standard
Rate 0.65 N/mm
SKU A-40CS
Solid Length 8.89 mm
Suggested Max Deflection 22.61 mm
Suggested Max Load 14.68 N
Total Coils 13
Wire Diameter 0.64 mm

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