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MM-39 - 0.25 Inch Music Wire Compression Spring

Inventory Status
Limited Availability

Regular compression spring in Music Wire with 4 total coils and Closed ends. This spring features an O.D. of 0.219 Inch, and an I.D. of 0.179 Inch.

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

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name MM-39
Ends Closed
Finish Zinc
Free Length 0.25 in
Inside Diameter 0.179 in
Material Music Wire
Outside Diameter 0.219 in
Part Type Standard
Rate 15 lbs/in
SKU MM-39CS
Solid Length 0.1 in
Suggested Max Deflection 0.15 in
Suggested Max Load 2.2 lbf
Total Coils 4
Wire Diameter 0.02 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name MM-39
Ends Closed
Finish Zinc
Free Length 6.35 mm
Inside Diameter 4.55 mm
Material Music Wire
Outside Diameter 5.56 mm
Part Type Standard
Rate 2.63 N/mm
SKU MM-39CS
Solid Length 2.54 mm
Suggested Max Deflection 3.81 mm
Suggested Max Load 9.79 N
Total Coils 4
Wire Diameter 0.51 mm

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