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MM-71 - 0.63 Inch, 75 Inch Pounds 302/304 Stainless Steel Compression Spring

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

Regular compression spring in 302/304 Stainless Steel with 3.5 total coils and Closed & Ground ends. This spring features an O.D. of 0.718 Inch, an I.D. of 0.578 Inch, and a spring rate of 75 Inch Pounds.

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-71
Ends Closed & Ground
Finish None
Free Length 0.63 in
Inside Diameter 0.578 in
Material 302/304 Stainless Steel
Outside Diameter 0.718 in
Part Type Standard
Rate 75 lbs/in
SKU MM-71CS
Solid Length 0.25 in
Suggested Max Deflection 0.2 in
Suggested Max Load 15 lbf
Total Coils 3.5
Wire Diameter 0.07 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name MM-71
Ends Closed & Ground
Finish None
Free Length 16 mm
Inside Diameter 14.68 mm
Material 302/304 Stainless Steel
Outside Diameter 18.24 mm
Part Type Standard
Rate 13.13 N/mm
SKU MM-71CS
Solid Length 6.35 mm
Suggested Max Deflection 5.08 mm
Suggested Max Load 66.72 N
Total Coils 3.5
Wire Diameter 1.78 mm

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