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Z-91 - 0.56 Inch, 50 Inch Pounds Music Wire Compression Spring

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

Compression spring manufactured from Music Wire with 8 coils and Closed ends. This spring features an O.D. of 0.188 Inch, an I.D. of 0.128 Inch, and a spring rate of 50 Inch Pounds.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name Z-91
Ends Closed
Finish Zinc
Free Length 0.56 in
Inside Diameter 0.128 in
Material Music Wire
Outside Diameter 0.188 in
Part Type Standard
Rate 50 lbs/in
SKU Z-91CS
Solid Length 0.27 in
Suggested Max Deflection 0.15 in
Suggested Max Load 7.7 lbf
Total Coils 8
Wire Diameter 0.03 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name Z-91
Ends Closed
Finish Zinc
Free Length 14.22 mm
Inside Diameter 3.25 mm
Material Music Wire
Outside Diameter 4.78 mm
Part Type Standard
Rate 8.76 N/mm
SKU Z-91CS
Solid Length 6.86 mm
Suggested Max Deflection 3.81 mm
Suggested Max Load 34.25 N
Total Coils 8
Wire Diameter 0.76 mm

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