H643-1912-91 — SPRING,HELICAL,EXTENSION

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

H643-1912-91: SPRING,HELICAL,EXTENSION.

The SPRING,HELICAL,EXTENSION is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OVERALL, end_style: SHORT TWISTED HOOK BOTH ENDS, stock_diameter: 0.0069 INCHES NOMINAL IN, inside_diameter: 0.612 INCHES NOMINAL IN, style_designator: CYLINDRICAL, spring_free_length: 3.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5360-01-508-4860, 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

H643-1912-91

NSN: 5360-01-508-4860
FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)

SPECIFICATIONS

material	STEEL COMP 302 OVERALL
end_style	SHORT TWISTED HOOK BOTH ENDS
stock_diameter	0.0069 INCHES NOMINAL IN
inside_diameter	0.612 INCHES NOMINAL IN
style_designator	CYLINDRICAL
spring_free_length	3.000 INCHES NOMINAL IN
coil_helix_direction	RIGHT-HAND OR LEFT-HAND
spring_deflection_rate	2.990 POUNDS PER INCH NOMINAL LBS
spring_free_outside_diameter	0.750 INCHES NOMINAL IN
NSN	5360-01-508-4860

COMPONENT DIAGRAM

KEY FEATURES

•

SPRING FREE OUTSIDE DIAMETER: 0.750 INCHES NOMINAL IN

•

END STYLE: SHORT TWISTED HOOK BOTH ENDS

•

STYLE DESIGNATOR: CYLINDRICAL

•

SPRING FREE LENGTH: 3.000 INCHES NOMINAL IN

•

SPRING DEFLECTION RATE: 2.990 POUNDS PER INCH NOMINAL LBS

•

INSIDE DIAMETER: 0.612 INCHES NOMINAL IN

•

STOCK DIAMETER: 0.0069 INCHES NOMINAL IN

•

COIL HELIX DIRECTION: RIGHT-HAND OR LEFT-HAND

TECHNICAL CHARACTERISTICS

SPRING FREE OUTSIDE DIAMETER	0.750 INCHES NOMINAL IN
END STYLE	SHORT TWISTED HOOK BOTH ENDS
STYLE DESIGNATOR	CYLINDRICAL
SPRING FREE LENGTH	3.000 INCHES NOMINAL IN
SPRING DEFLECTION RATE	2.990 POUNDS PER INCH NOMINAL LBS
INSIDE DIAMETER	0.612 INCHES NOMINAL IN
STOCK DIAMETER	0.0069 INCHES NOMINAL IN
COIL HELIX DIRECTION	RIGHT-HAND OR LEFT-HAND
MATERIAL	STEEL COMP 302 OVERALL

OTHER ITEMS IN FSC 5360 — Coil, Flat, Leaf, and Wire Springs

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5360-00-001-1842 5360-00-001-1945 5360-00-001-2010 5360-00-001-3865 5360-00-001-3950 5360-00-001-4650 5360-00-001-4664 5360-00-001-4703

SUBSTITUTES & CROSS-REFERENCES 2

LE-069G-5-SReference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

LE-069G-5Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is H643-1912-91?

H643-1912-91 is a SPRING,HELICAL,EXTENSION.

What parts can replace H643-1912-91?

There are 2 known substitutes for H643-1912-91: LE-069G-5-S, LE-069G-5. Substitute compatibility should be verified for your specific system.

What is the NSN for H643-1912-91?

H643-1912-91 is cataloged in the U.S. Government catalog under NSN 5360-01-508-4860. This indicates validated use in U.S. government and defense supply chains.

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