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MM-4CS - 1.38" Spring Steel Compression Spring

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Compression spring manufactured from spring steel with 7 coils and closed & ground ends. This spring features an O.D. of 1.062", and an I.D. of 0.942".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name MM-4
Ends Closed & Ground
Finish Zinc
Free Length 1.38 in
Inside Diameter 0.942 in
Material Spring Steel
Outside Diameter 1.062 in
Part Type Standard
Rate 3.7 lbs/in
SKU MM-4CS
Solid Length 0.42 in
Suggested Max Deflection 0.96 in
Suggested Max Load 3.5 lbf
Total Coils 7
Wire Diameter 0.06 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name MM-4
Ends Closed & Ground
Finish Zinc
Free Length 35.05 mm
Inside Diameter 23.93 mm
Material Spring Steel
Outside Diameter 26.97 mm
Part Type Standard
Rate 0.65 N/mm
SKU MM-4CS
Solid Length 10.67 mm
Suggested Max Deflection 24.38 mm
Suggested Max Load 15.57 N
Total Coils 7
Wire Diameter 1.52 mm
The MM-4 compression spring is engineered for optimal performance in demanding applications. Constructed from high-quality spring steel and designed with precision and durability in mind, this spring is an essential component for a variety of mechanical systems where reliable force and resilience are paramount.

The MM-4CS compression spring is designed with a free length of 0.84" total of 6 coils, and a rate of 6.1 lbs/in providing a balanced combination of flexibility and strength. This spring coil, and its closed & ground end configuration allows for efficient energy storage and release, making it suitable for applications requiring precise motion control.

The MM-4 spring design is ideal for use in industrial machinery, automotive systems, and various mechanical assemblies where reliable force application is crucial. Its robust construction and thoughtful design make it a dependable choice for engineers seeking a high-performance spring solution.

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