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S504959 — SHAFT,SHOULDERED

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

S504959: SHAFT,SHOULDERED.

The SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4340, end_similarity: NOT IDENTICAL, overall_length: 11.675 INCHES NOMINAL IN, surface_finish: 20.0 MICROINCHES, first_end_style: CIRCULAR GROOVED, second_end_style: EXTERNAL THREADED. This part is cataloged in the U.S.

Government catalog under NSN 3040-01-040-1127, 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
S504959
NSN: 3040-01-040-1127
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)
SPECIFICATIONS
materialSTEEL COMP 4340
step_quantity6
end_similarityNOT IDENTICAL
overall_length11.675 INCHES NOMINAL IN
surface_finish20.0 MICROINCHES
first_end_styleCIRCULAR GROOVED
second_end_styleEXTERNAL THREADED
first_end_diameter1.5750 INCHES NOMINAL IN
second_end_diameter1.0000 INCHES NOMINAL IN
largest_step_diameter2.756 INCHES NOMINAL IN
first_end_groove_width0.0700 INCHES NOMINAL IN
first_end_groove_diameter1.4700 INCHES NOMINAL IN
NSN3040-01-040-1127
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SHAFT,SHOULDERED TITLE COMPONENT PN S504959 MFR SHAFT,SHOULDERED
KEY FEATURES
•
SURFACE FINISH: 20.0 MICROINCHES
•
SECOND END EXTERNAL THREAD LENGTH: 0.917 INCHES NOMINAL IN
•
STEP QUANTITY: 6
•
FIRST END DIAMETER: 1.5750 INCHES NOMINAL IN
•
SECOND END DIAMETER: 1.0000 INCHES NOMINAL IN
•
LARGEST STEP DIAMETER: 2.756 INCHES NOMINAL IN
•
FIRST END STYLE: CIRCULAR GROOVED
TECHNICAL CHARACTERISTICS
SURFACE FINISH20.0 MICROINCHES
SECOND END EXTERNAL THREAD LENGTH0.917 INCHES NOMINAL IN
STEP QUANTITY6
FIRST END DIAMETER1.5750 INCHES NOMINAL IN
SECOND END DIAMETER1.0000 INCHES NOMINAL IN
LARGEST STEP DIAMETER2.756 INCHES NOMINAL IN
FIRST END STYLECIRCULAR GROOVED
OVERALL LENGTH11.675 INCHES NOMINAL IN
END SIMILARITYNOT IDENTICAL
FIRST END DISTANCE FROM END TO GROOVE0.219 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 S504959?
S504959 is a SHAFT,SHOULDERED.
What is the NSN for S504959?
S504959 is cataloged in the U.S. Government catalog under NSN 3040-01-040-1127. 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.