M-2979 — SPRING,HELICAL,COMPRESSION

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

M-2979: SPRING,HELICAL,COMPRESSION.

The SPRING,HELICAL,COMPRESSION is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROSILICONE CLASS FQ OVERALL, temp_rating: -62.0 CELSIUS AND 175.0 CELSIUS DEGC, overall_width: 0.633 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN, aperture_width: 0.441 INCHES MINIMUM AND 0.451 INCHES MAXIMUM IN, overall_length: 1.003 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN, aperture_length: 0.811 INCHES MINIMUM AND 0.821 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5360-00-631-4432, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS

M-2979

NSN: 5360-00-631-4432
NIINs: 006314432, 011290647
FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
CAGE: 14541 — COOPER MACHINERY SERVICES LLC (USA)

SPECIFICATIONS

material	RUBBER FLUOROSILICONE CLASS FQ OVERALL
temp_rating	-62.0 CELSIUS AND 175.0 CELSIUS DEGC
overall_width	0.633 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
aperture_width	0.441 INCHES MINIMUM AND 0.451 INCHES MAXIMUM IN
overall_length	1.003 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN
aperture_length	0.811 INCHES MINIMUM AND 0.821 INCHES MAXIMUM IN
elongation_percentage	125 MAXIMUM
outside_corner_radius	0.045 INCHES NOMINAL IN
cross-sectional_thickness	0.064 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
material_document_and_classification	MIL-R-25988 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN	5360-00-631-4432

COMPONENT DIAGRAM

KEY FEATURES

•

SPRING FREE OUTSIDE DIAMETER: 1.690 INCHES MINIMUM AND 1.700 INCHES MAXIMUM IN

•

END STYLE: SPRING END,SQUARED AND GROUND BOTH ENDS

•

SPRING SOLID LENGTH: 1.078 INCHES NOMINAL IN

•

STYLE DESIGNATOR: CYLINDRICAL

•

MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A230-47 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

SPRING FREE LENGTH: 4.125 INCHES NOMINAL IN

•

SPRING DEFLECTION RATE: 21.000 POUNDS PER INCH NOMINAL LBS

•

INSIDE DIAMETER: 1.420 INCHES MINIMUM AND 1.430 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

SPRING FREE OUTSIDE DIAMETER	1.690 INCHES MINIMUM AND 1.700 INCHES MAXIMUM IN
END STYLE	SPRING END,SQUARED AND GROUND BOTH ENDS
SPRING SOLID LENGTH	1.078 INCHES NOMINAL IN
STYLE DESIGNATOR	CYLINDRICAL
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A230-47 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SPRING FREE LENGTH	4.125 INCHES NOMINAL IN
SPRING DEFLECTION RATE	21.000 POUNDS PER INCH NOMINAL LBS
INSIDE DIAMETER	1.420 INCHES MINIMUM AND 1.430 INCHES MAXIMUM IN
COIL QUANTITY	8
COIL HELIX DIRECTION	RIGHT-HAND

SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is M-2979?

M-2979 is a SPRING,HELICAL,COMPRESSION.

What is the NSN for M-2979?

M-2979 is cataloged in the U.S. Government catalog under NSN 5360-00-631-4432. This indicates validated use in U.S. government and defense supply chains.

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M-2979 — SPRING,HELICAL,COMPRESSION

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