998-1-4M1ITEM1A — SPRING,HELICAL,TORSION

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

998-1-4M1ITEM1A: SPRING,HELICAL,TORSION.

The SPRING,HELICAL,TORSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_style: SHORT HOOK, END OVERALL, end_length: 0.375 INCHES NOMINAL BOTH ENDS IN, inside_diameter: 0.953 INCHES NOMINAL IN, style_designator: SINGLE TORSION LEFT HAND, surface_treatment: ZINC OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5360-00-314-6571, 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

998-1-4M1ITEM1A

NSN: 5360-00-314-6571
FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
CAGE: 15605 — EATON CORP OPNS & TECHNICAL CENTER (USA)

SPECIFICATIONS

material	STEEL OVERALL
end_style	SHORT HOOK, END OVERALL
end_length	0.375 INCHES NOMINAL BOTH ENDS IN
coil_quantity	7
inside_diameter	0.953 INCHES NOMINAL IN
style_designator	SINGLE TORSION LEFT HAND
surface_treatment	ZINC OVERALL
spring_free_length	0.781 INCHES NOMINAL IN
coil_helix_direction	RIGHT-HAND OR LEFT-HAND
end_angular_relationship	ENDS ANGLED ONE TO OTHER
spring_free_outside_diameter	1.140 INCHES NOMINAL IN
NSN	5360-00-314-6571

COMPONENT DIAGRAM

KEY FEATURES

•

SPRING FREE OUTSIDE DIAMETER: 1.140 INCHES NOMINAL IN

•

END STYLE: SHORT HOOK, END OVERALL

•

END LENGTH: 0.375 INCHES NOMINAL BOTH ENDS IN

•

STYLE DESIGNATOR: SINGLE TORSION LEFT HAND

•

SPRING FREE LENGTH: 0.781 INCHES NOMINAL IN

•

INSIDE DIAMETER: 0.953 INCHES NOMINAL IN

•

COIL QUANTITY: 7

•

SURFACE TREATMENT: ZINC OVERALL

TECHNICAL CHARACTERISTICS

SPRING FREE OUTSIDE DIAMETER	1.140 INCHES NOMINAL IN
END STYLE	SHORT HOOK, END OVERALL
END LENGTH	0.375 INCHES NOMINAL BOTH ENDS IN
STYLE DESIGNATOR	SINGLE TORSION LEFT HAND
SPRING FREE LENGTH	0.781 INCHES NOMINAL IN
INSIDE DIAMETER	0.953 INCHES NOMINAL IN
COIL QUANTITY	7
SURFACE TREATMENT	ZINC OVERALL
COIL HELIX DIRECTION	RIGHT-HAND OR LEFT-HAND
MATERIAL	STEEL OVERALL

SUBSTITUTES & CROSS-REFERENCES 2

90869W1ITEM2AReference document

Same NSN cross-reference

Reference document — Secondary reference

956-2-1M1ALT3ITEReference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 998-1-4M1ITEM1A?

998-1-4M1ITEM1A is a SPRING,HELICAL,TORSION.

What parts can replace 998-1-4M1ITEM1A?

There are 2 known substitutes for 998-1-4M1ITEM1A: 90869W1ITEM2A, 956-2-1M1ALT3ITE. Substitute compatibility should be verified for your specific system.

What is the NSN for 998-1-4M1ITEM1A?

998-1-4M1ITEM1A is cataloged in the U.S. Government catalog under NSN 5360-00-314-6571. This indicates validated use in U.S. government and defense supply chains.

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998-1-4M1ITEM1A — SPRING,HELICAL,TORSION

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