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291278A — SHAFT,SHOULDERED

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

291278A: SHAFT,SHOULDERED.

The SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL, end_similarity: NOT IDENTICAL, overall_length: 2.750 INCHES NOMINAL IN, first_end_style: CIRCULAR GROOVED, second_end_style: EXTERNAL THREADED, first_end_diameter: 0.6700 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3040-00-063-0237, 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
291278A
NSN: 3040-00-063-0237
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 1ML14 — BRINKLEY TECHNOLOGY GROUP LLC DBA HERCULES MANUFACTURING (USA)
SPECIFICATIONS
materialSTEEL
step_quantity3
end_similarityNOT IDENTICAL
overall_length2.750 INCHES NOMINAL IN
first_end_styleCIRCULAR GROOVED
second_end_styleEXTERNAL THREADED
first_end_diameter0.6700 INCHES NOMINAL IN
second_end_diameter0.5000 INCHES NOMINAL IN
largest_step_diameter1.000 INCHES NOMINAL IN
first_end_groove_width0.0510 INCHES MINIMUM AND 0.0560 INCHES MAXIMUM IN
first_end_groove_diameter0.6240 INCHES MINIMUM AND 0.6290 INCHES MAXIMUM IN
second_end_external_thread_length0.500 INCHES NOMINAL IN
NSN3040-00-063-0237
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SHAFT,SHOULDERED TITLE COMPONENT PN 291278A MFR SHAFT,SHOULDERED
KEY FEATURES
•
SECOND END EXTERNAL THREAD LENGTH: 0.500 INCHES NOMINAL IN
•
STEP QUANTITY: 3
•
FIRST END DIAMETER: 0.6700 INCHES NOMINAL IN
•
SECOND END DIAMETER: 0.5000 INCHES NOMINAL IN
•
LARGEST STEP DIAMETER: 1.000 INCHES NOMINAL IN
•
FIRST END STYLE: CIRCULAR GROOVED
•
END SIMILARITY: NOT IDENTICAL
TECHNICAL CHARACTERISTICS
SECOND END EXTERNAL THREAD LENGTH0.500 INCHES NOMINAL IN
STEP QUANTITY3
FIRST END DIAMETER0.6700 INCHES NOMINAL IN
SECOND END DIAMETER0.5000 INCHES NOMINAL IN
LARGEST STEP DIAMETER1.000 INCHES NOMINAL IN
FIRST END STYLECIRCULAR GROOVED
OVERALL LENGTH2.750 INCHES NOMINAL IN
END SIMILARITYNOT IDENTICAL
FIRST END DISTANCE FROM END TO GROOVE0.100 INCHES NOMINAL IN
FIRST END GROOVE DIAMETER0.6240 INCHES MINIMUM AND 0.6290 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 291278A?
291278A is a SHAFT,SHOULDERED.
What is the NSN for 291278A?
291278A is cataloged in the U.S. Government catalog under NSN 3040-00-063-0237. 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.