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374339 — SHAFT,SHOULDERED

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

374339: SHAFT,SHOULDERED.

The SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL, end_similarity: NOT IDENTICAL, overall_length: 4.500 INCHES NOMINAL IN, first_end_style: PLAIN, second_end_style: SPLINED (STRAIGHT), first_end_diameter: 0.4060 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3040-00-451-3645, 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
374339
NSN: 3040-00-451-3645
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 62983 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
materialSTEEL
step_quantity6
end_similarityNOT IDENTICAL
overall_length4.500 INCHES NOMINAL IN
first_end_stylePLAIN
second_end_styleSPLINED (STRAIGHT)
first_end_diameter0.4060 INCHES NOMINAL IN
second_end_diameter0.6250 INCHES NOMINAL IN
largest_step_diameter0.844 INCHES NOMINAL IN
second_end_spline_length0.688 INCHES NOMINAL IN
second_end_spline_quantity9
second_end_spline_major_diameter0.6250 INCHES NOMINAL IN
NSN3040-00-451-3645
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SHAFT,SHOULDERED TITLE COMPONENT PN 374339 MFR SHAFT,SHOULDERED
KEY FEATURES
•
STEP QUANTITY: 6
•
FIRST END DIAMETER: 0.4060 INCHES NOMINAL IN
•
SECOND END DIAMETER: 0.6250 INCHES NOMINAL IN
•
LARGEST STEP DIAMETER: 0.844 INCHES NOMINAL IN
•
SECOND END SPLINE MINOR DIAMETER: 0.4690 INCHES NOMINAL IN
•
FIRST END STYLE: PLAIN
•
SECOND END SPLINE MAJOR DIAMETER: 0.6250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STEP QUANTITY6
FIRST END DIAMETER0.4060 INCHES NOMINAL IN
SECOND END DIAMETER0.6250 INCHES NOMINAL IN
LARGEST STEP DIAMETER0.844 INCHES NOMINAL IN
SECOND END SPLINE MINOR DIAMETER0.4690 INCHES NOMINAL IN
FIRST END STYLEPLAIN
SECOND END SPLINE MAJOR DIAMETER0.6250 INCHES NOMINAL IN
OVERALL LENGTH4.500 INCHES NOMINAL IN
END SIMILARITYNOT IDENTICAL
SECOND END SPLINE QUANTITY9
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 374339?
374339 is a SHAFT,SHOULDERED.
What is the NSN for 374339?
374339 is cataloged in the U.S. Government catalog under NSN 3040-00-451-3645. 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.