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12478952 — SHAFT,SHOULDERED

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

12478952: SHAFT,SHOULDERED.

The SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OR STEEL COMP 316, end_similarity: NOT IDENTICAL, overall_length: 1.750 INCHES NOMINAL IN, first_end_style: CIRCULAR GROOVED, second_end_style: RECTANGULAR (ROUNDED COVERS), special_features: NEXT ASSEMBLY IS THE 'ADAPTER, HOUSING' NSN 3040-01-494-3621. This part is cataloged in the U.S.

Government catalog under NSN 3040-01-494-9196, 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
12478952
NSN: 3040-01-494-9196
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OR STEEL COMP 316
step_quantity4
end_similarityNOT IDENTICAL
overall_length1.750 INCHES NOMINAL IN
first_end_styleCIRCULAR GROOVED
second_end_styleRECTANGULAR (ROUNDED COVERS)
special_featuresNEXT ASSEMBLY IS THE 'ADAPTER, HOUSING' NSN 3040-01-494-3621
first_end_diameter0.1900 INCHES NOMINAL IN
second_end_diameter0.2500 INCHES NOMINAL IN
largest_step_diameter0.438 INCHES NOMINAL IN
first_end_groove_width0.3100 INCHES NOMINAL IN
second_end_step_length0.4000 INCHES NOMINAL IN
NSN3040-01-494-9196
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SHAFT,SHOULDERED TITLE COMPONENT PN 12478952 MFR SHAFT,SHOULDERED
KEY FEATURES
•
STEP QUANTITY: 4
•
FIRST END DIAMETER: 0.1900 INCHES NOMINAL IN
•
SECOND END DIAMETER: 0.2500 INCHES NOMINAL IN
•
SECOND END STEP LENGTH: 0.4000 INCHES NOMINAL IN
•
LARGEST STEP DIAMETER: 0.438 INCHES NOMINAL IN
•
FIRST END STYLE: CIRCULAR GROOVED
•
SECOND END TONGUE WIDTH: 0.4380 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STEP QUANTITY4
FIRST END DIAMETER0.1900 INCHES NOMINAL IN
SECOND END DIAMETER0.2500 INCHES NOMINAL IN
SECOND END STEP LENGTH0.4000 INCHES NOMINAL IN
LARGEST STEP DIAMETER0.438 INCHES NOMINAL IN
FIRST END STYLECIRCULAR GROOVED
OVERALL LENGTH1.750 INCHES NOMINAL IN
SECOND END TONGUE WIDTH0.4380 INCHES NOMINAL IN
END SIMILARITYNOT IDENTICAL
SECOND END TONGUE THICKNESS0.1700 INCHES NOMINAL 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

No substitute or cross-reference records for this part.

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 12478952?
12478952 is a SHAFT,SHOULDERED.
What is the NSN for 12478952?
12478952 is cataloged in the U.S. Government catalog under NSN 3040-01-494-9196. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.