77643-74X2 PC 23 — SHAFT,SHOULDERED

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

77643-74X2 PC 23: SHAFT,SHOULDERED.

The SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, end_similarity: IDENTICAL, overall_length: 10.938 INCHES NOMINAL IN, surface_finish: 125.0 MICROINCHES, first_end_style: EXTERNAL THREADED, first_end_diameter: 0.8750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3040-01-194-7878, 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

77643-74X2 PC 23

NSN: 3040-01-194-7878
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 1E534 — SWISS PRECISION PRODUCTS, INC. DBA SWISS PRECISION PRODUCTS INC (USA)

SPECIFICATIONS

material	NICKEL ALLOY
step_quantity	3
end_similarity	IDENTICAL
overall_length	10.938 INCHES NOMINAL IN
surface_finish	125.0 MICROINCHES
first_end_style	EXTERNAL THREADED
first_end_diameter	0.8750 INCHES NOMINAL IN
largest_step_diameter	1.247 INCHES MINIMUM AND 1.248 INCHES MAXIMUM IN
first_end_external_thread_length	0.938 INCHES NOMINAL IN
material_document_and_classification	QQ-N-281 CLASS A FED SPEC SINGLE MATERIAL RESPONSE
NSN	3040-01-194-7878

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 125.0 MICROINCHES

•

STEP QUANTITY: 3

•

FIRST END DIAMETER: 0.8750 INCHES NOMINAL IN

•

LARGEST STEP DIAMETER: 1.247 INCHES MINIMUM AND 1.248 INCHES MAXIMUM IN

•

FIRST END EXTERNAL THREAD LENGTH: 0.938 INCHES NOMINAL IN

•

FIRST END STYLE: EXTERNAL THREADED

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281 CLASS A FED SPEC SINGLE MATERIAL RESPONSE

TECHNICAL CHARACTERISTICS

SURFACE FINISH	125.0 MICROINCHES
STEP QUANTITY	3
FIRST END DIAMETER	0.8750 INCHES NOMINAL IN
LARGEST STEP DIAMETER	1.247 INCHES MINIMUM AND 1.248 INCHES MAXIMUM IN
FIRST END EXTERNAL THREAD LENGTH	0.938 INCHES NOMINAL IN
FIRST END STYLE	EXTERNAL THREADED
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-281 CLASS A FED SPEC SINGLE MATERIAL RESPONSE
OVERALL LENGTH	10.938 INCHES NOMINAL IN
END SIMILARITY	IDENTICAL
MATERIAL	NICKEL ALLOY

SUBSTITUTES & CROSS-REFERENCES 4

SSN637-501-2143875 PIECE 23Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

SSN637-501-2143875Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

77643-74-X 2Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

77643-74-X 2 PIECE 23Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 77643-74X2 PC 23?

77643-74X2 PC 23 is a SHAFT,SHOULDERED.

What parts can replace 77643-74X2 PC 23?

There are 4 known substitutes for 77643-74X2 PC 23: SSN637-501-2143875 PIECE 23, SSN637-501-2143875, 77643-74-X 2 and 1 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 77643-74X2 PC 23?

77643-74X2 PC 23 is cataloged in the U.S. Government catalog under NSN 3040-01-194-7878. This indicates validated use in U.S. government and defense supply chains.

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