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MM-98CS - 0.69" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 3.5 coils and closed & ground ends. This spring features an O.D. of 1.031", and an I.D. of 0.731".

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

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name MM-98
Ends Closed & Ground
Finish Zinc
Free Length 0.69 in
Inside Diameter 0.731 in
Material Spring Steel
Outside Diameter 1.031 in
Part Type Standard
Rate 710 lbs/in
SKU MM-98CS
Solid Length 0.53 in
Suggested Max Deflection 0.13 in
Suggested Max Load 96 lbf
Total Coils 3.5
Wire Diameter 0.15 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name MM-98
Ends Closed & Ground
Finish Zinc
Free Length 17.53 mm
Inside Diameter 18.57 mm
Material Spring Steel
Outside Diameter 26.19 mm
Part Type Standard
Rate 124.32 N/mm
SKU MM-98CS
Solid Length 13.46 mm
Suggested Max Deflection 3.3 mm
Suggested Max Load 427.01 N
Total Coils 3.5
Wire Diameter 3.81 mm
The compression spring MM-98CS is an essential component designed for applications requiring reliable force and energy storage. Crafted from high-quality spring steel, the MM-98 compression spring design exhibits exceptional tensile strength and resilience.

The MM-98 design is manufactured with a free length of 0.69", with an outer diameter of 1.031", an inner diameter of 0.731", and a total of 3.5 coils, expertly designed to deliver consistent compression characteristics including a rate of 710 lbs/in.

The MM-98CS compression spring is ideally suited for use in a wide range of mechanical assemblies, including but not limited to automotive suspension systems, industrial machinery, and electronic devices.

In summary, the compression spring MM-98 design stands out for its superior material properties, thoughtful design, and versatility in application. It is a prime choice for engineers committed to excellence and innovation in their projects.