Compression Spring LCM035A 03 M: OD 3 mm, FL 9.5 mm, Music Wire

Compression Springs — In Stock & Ready to Ship
Lee Spring stocks thousands of compression springs across multiple series and materials — ready to ship today. Our in-stock inventory includes music wire, Type 302 and 316 stainless steel, chrome-silicon, 17-7 stainless, and plastic composite options. Available series include Standard, Instrument, Heavy Duty, High Pressure, Lite Pressure, BANTAM™ Mini, DIN-Plus, MIL-SPEC, HEFTY™ Die Springs, and LeeP™ Plastic Composite Springs. All standard stock compression springs include free grinding. Music wire springs come with free plating, and stainless steel springs include free passivation. A free Certificate of Compliance is available on all orders. Free shipping options are also available.
Standard Compression Series (metric) Compression Springs
Selection to Match Your Needs
Lee Spring LCM035A 03 M is a precision compression spring from the Standard Compression Series (metric), engineered for applications requiring reliable quality compression springs. This spring features an 3-mm outside diameter (0.118 inch) with a 3.2-mm hole diameter (0.126 inch) and extends to a free length of 9.5 mm (0.374 inch). Made from Music Wire with a 0.36-mm wire diameter (0.014 inch), the spring delivers a spring rate of 1.256 N/mm (7.17 lb/inch) through its 6.71 active coils out of 8.71 total coils for predictable deflection behavior.
The spring compresses to a solid height of 3.2 mm (0.126 inch) while supporting a maximum load of 8.14 N (1.83 lb) at full compression. The spring has Squared and Ground ends and a Zinc Plate and Bake per ASTM B633 finish for optimal performance.
About the Standard Compression Spring Series

The Lee Spring Standard Compression Spring line includes a wide range of size and rate combinations. Selections are sorted in ascending order to mating hole/bore diameter sizes. Standard Compression Springs are available in both standard and metric series. Standard Series springs are available in Music Wire, Type 302 Stainless Steel and Type 316 Stainless Steel. Metric Series springs are available in Music Wire and Type 302 Stainless Steel. The Music Wire springs are provided with a plating finish for light corrosion resistance.
The Type 302 Stainless Steel springs are passivated, while Type 316 Stainless Steel springs are passivated and ultrasonically cleaned. Lee Spring Standard Compression Springs feature squared and ground ends. A squared end, also called a closed end, is made by reducing the coil pitch of the ends to zero. Squareness influences how a force produced by the spring can be transferred to adjacent parts. The ground ends provide flat bearing surfaces and additional stability.
Standard Compression Series (metric) Compression Springs have useful applications in various industries, including:
- Medical devices
- Firearms
- Pharmaceutical delivery devices
- Lighting and electrical control
- Petro-chemical processes
- Communication devices
- Aerospace
- Testing and measurement equipment
- Marine applications
- Automotive
- Locks and security devices
- Precision Instruments
- Hardware
…and many more applications
Specifications
- Product: Compression OD 0.118 in, Length 0.374 in, Music Wire
- Part Number: LCM035A 03 M
- Series: Standard Compression Series (metric)
- Outside Diameter (inch): 0.118
- Hole Diameter (inch): 0.126
- Rod Diameter (inch): 0.083
- Free Length (inch): 0.374
- Rate (lb/inch): 7.17
- Solid Height (inch): 0.126
- Wire Diameter (inch): 0.014
- Material: Music Wire
- Load at Solid Height (lb): 1.83
- Ends: Squared and Ground
- Active Coils: 6.71
- Direction of Wind: Factory Option
- Finish: Zinc Plate and Bake per ASTM B633
- Total Coils: 8.71
Engineered for Excellence, The Lee Spring Advantages
- Expert Engineering Assistance Available
- Certificate of Compliance Included
- Guaranteed RoHS Compliance on all Stock Springs
- Enhanced CAD Downloads Available
- 9001:2015 ISO Registered
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