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1L5977 — SHAFT,SHOULDERED

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

1L5977: SHAFT,SHOULDERED.

The SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL, end_similarity: NOT IDENTICAL, overall_length: 8.938 INCHES NOMINAL IN, first_end_style: CROSS DRILLED AND EXTERNALLY THREADED, second_end_style: EXTERNAL THREADED, first_end_diameter: 1.0000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3040-00-246-3310, 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
1L5977
NSN: 3040-00-246-3310
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL
step_quantity8
end_similarityNOT IDENTICAL
overall_length8.938 INCHES NOMINAL IN
first_end_styleCROSS DRILLED AND EXTERNALLY THREADED
second_end_styleEXTERNAL THREADED
first_end_diameter1.0000 INCHES NOMINAL IN
second_end_diameter1.3750 INCHES NOMINAL IN
first_end_hole_depth0.625 INCHES NOMINAL IN
largest_step_diameter1.625 INCHES NOMINAL IN
first_end_hole_diameter0.1250 INCHES NOMINAL IN
first_end_external_thread_length0.750 INCHES NOMINAL IN
NSN3040-00-246-3310
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SHAFT,SHOULDERED TITLE COMPONENT PN 1L5977 MFR SHAFT,SHOULDERED
KEY FEATURES
•
SECOND END EXTERNAL THREAD LENGTH: 0.406 INCHES NOMINAL IN
•
STEP QUANTITY: 8
•
FIRST END DIAMETER: 1.0000 INCHES NOMINAL IN
•
SECOND END DIAMETER: 1.3750 INCHES NOMINAL IN
•
LARGEST STEP DIAMETER: 1.625 INCHES NOMINAL IN
•
FIRST END EXTERNAL THREAD LENGTH: 0.750 INCHES NOMINAL IN
•
FIRST END HOLE DEPTH: 0.625 INCHES NOMINAL IN
•
FIRST END STYLE: CROSS DRILLED AND EXTERNALLY THREADED
TECHNICAL CHARACTERISTICS
SECOND END EXTERNAL THREAD LENGTH0.406 INCHES NOMINAL IN
STEP QUANTITY8
FIRST END DIAMETER1.0000 INCHES NOMINAL IN
SECOND END DIAMETER1.3750 INCHES NOMINAL IN
LARGEST STEP DIAMETER1.625 INCHES NOMINAL IN
FIRST END EXTERNAL THREAD LENGTH0.750 INCHES NOMINAL IN
FIRST END HOLE DEPTH0.625 INCHES NOMINAL IN
FIRST END STYLECROSS DRILLED AND EXTERNALLY THREADED
OVERALL LENGTH8.938 INCHES NOMINAL IN
END SIMILARITYNOT IDENTICAL
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 1L5977?
1L5977 is a SHAFT,SHOULDERED.
What is the NSN for 1L5977?
1L5977 is cataloged in the U.S. Government catalog under NSN 3040-00-246-3310. 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.