H643-7003-81 — SHAFT,SHOULDERED

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

H643-7003-81: SHAFT,SHOULDERED.

The SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include material: NICKEL, end_similarity: NOT IDENTICAL, overall_length: 11.3700 INCHES NOMINAL IN, first_end_style: SQUARE AND CROSS DRILLED HOLE, second_end_style: CROSS DRILLED HOLE AND SPLINED (STRAIGHT), first_end_diameter: 1.2500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3040-01-486-4731, 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

H643-7003-81

NSN: 3040-01-486-4731
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)

SPECIFICATIONS

material	NICKEL
step_quantity	4
end_similarity	NOT IDENTICAL
overall_length	11.3700 INCHES NOMINAL IN
first_end_style	SQUARE AND CROSS DRILLED HOLE
second_end_style	CROSS DRILLED HOLE AND SPLINED (STRAIGHT)
first_end_diameter	1.2500 INCHES NOMINAL IN
second_end_diameter	0.9970 INCHES MINIMUM AND 0.9980 INCHES MAXIMUM IN
first_end_hole_depth	0.9950 INCHES NOMINAL IN
largest_step_diameter	1.4920 INCHES MINIMUM AND 1.4940 INCHES MAXIMUM IN
second_end_hole_depth	0.9980 INCHES NOMINAL IN
end_item_identification	LOS ANGELES CLASS SSN (688)
NSN	3040-01-486-4731

COMPONENT DIAGRAM

KEY FEATURES

•

FIRST END WIDTH ACROSS FLATS: 0.9950 INCHES NOMINAL IN

•

SECOND END HOLE DIAMETER: 0.4060 INCHES NOMINAL IN

•

STEP QUANTITY: 4

•

FIRST END DIAMETER: 1.2500 INCHES NOMINAL IN

•

SECOND END DIAMETER: 0.9970 INCHES MINIMUM AND 0.9980 INCHES MAXIMUM IN

•

LARGEST STEP DIAMETER: 1.4920 INCHES MINIMUM AND 1.4940 INCHES MAXIMUM IN

•

SECOND END SPLINE MINOR DIAMETER: 0.8440 INCHES MINIMUM AND 0.8540 INCHES MAXIMUM IN

•

FIRST END HOLE DEPTH: 0.9950 INCHES NOMINAL IN

TECHNICAL CHARACTERISTICS

FIRST END WIDTH ACROSS FLATS	0.9950 INCHES NOMINAL IN
SECOND END HOLE DIAMETER	0.4060 INCHES NOMINAL IN
STEP QUANTITY	4
FIRST END DIAMETER	1.2500 INCHES NOMINAL IN
SECOND END DIAMETER	0.9970 INCHES MINIMUM AND 0.9980 INCHES MAXIMUM IN
LARGEST STEP DIAMETER	1.4920 INCHES MINIMUM AND 1.4940 INCHES MAXIMUM IN
SECOND END SPLINE MINOR DIAMETER	0.8440 INCHES MINIMUM AND 0.8540 INCHES MAXIMUM IN
FIRST END HOLE DEPTH	0.9950 INCHES NOMINAL IN
FIRST END STYLE	SQUARE AND CROSS DRILLED HOLE
SECOND END SPLINE MAJOR DIAMETER	0.9970 INCHES MINIMUM AND 0.9980 INCHES MAXIMUM IN

OTHER ITEMS IN FSC 3040 — Miscellaneous Power Transmission Equipment

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

3040-00-001-0046 3040-00-001-0047 3040-00-001-0048 3040-00-001-0068 3040-00-001-0077 3040-00-001-0078 3040-00-001-0089 3040-00-001-1224

SUBSTITUTES & CROSS-REFERENCES 2

H643-7003Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

7067322Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

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 H643-7003-81?

H643-7003-81 is a SHAFT,SHOULDERED.

What parts can replace H643-7003-81?

There are 2 known substitutes for H643-7003-81: H643-7003, 7067322. Substitute compatibility should be verified for your specific system.

What is the NSN for H643-7003-81?

H643-7003-81 is cataloged in the U.S. Government catalog under NSN 3040-01-486-4731. This indicates validated use in U.S. government and defense supply chains.

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