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1M8385 — SHAFT,SHOULDERED

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

1M8385: SHAFT,SHOULDERED.

The SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL, end_similarity: NOT IDENTICAL, overall_length: 16.620 INCHES NOMINAL IN, first_end_style: SPLINED (STRAIGHT), second_end_style: EXTERNAL THREADED, first_end_diameter: 1.3090 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3040-00-192-8461, 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
1M8385
NSN: 3040-00-192-8461
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL
step_quantity6
end_similarityNOT IDENTICAL
overall_length16.620 INCHES NOMINAL IN
first_end_styleSPLINED (STRAIGHT)
second_end_styleEXTERNAL THREADED
first_end_diameter1.3090 INCHES NOMINAL IN
second_end_diameter0.7500 INCHES NOMINAL IN
largest_step_diameter2.000 INCHES NOMINAL IN
first_end_spline_length2.310 INCHES NOMINAL IN
first_end_spline_quantity15
first_end_spline_major_diameter1.3090 INCHES NOMINAL IN
NSN3040-00-192-8461
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SHAFT,SHOULDERED TITLE COMPONENT PN 1M8385 MFR SHAFT,SHOULDERED
KEY FEATURES
•
SECOND END EXTERNAL THREAD LENGTH: 0.875 INCHES NOMINAL IN
•
STEP QUANTITY: 6
•
FIRST END DIAMETER: 1.3090 INCHES NOMINAL IN
•
FIRST END SPLINE MAJOR DIAMETER: 1.3090 INCHES NOMINAL IN
•
SECOND END DIAMETER: 0.7500 INCHES NOMINAL IN
•
LARGEST STEP DIAMETER: 2.000 INCHES NOMINAL IN
•
FIRST END STYLE: SPLINED (STRAIGHT)
TECHNICAL CHARACTERISTICS
SECOND END EXTERNAL THREAD LENGTH0.875 INCHES NOMINAL IN
STEP QUANTITY6
FIRST END DIAMETER1.3090 INCHES NOMINAL IN
FIRST END SPLINE MAJOR DIAMETER1.3090 INCHES NOMINAL IN
SECOND END DIAMETER0.7500 INCHES NOMINAL IN
LARGEST STEP DIAMETER2.000 INCHES NOMINAL IN
FIRST END STYLESPLINED (STRAIGHT)
OVERALL LENGTH16.620 INCHES NOMINAL IN
FIRST END SPLINE LENGTH2.310 INCHES NOMINAL IN
FIRST END SPLINE QUANTITY15
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 1M8385?
1M8385 is a SHAFT,SHOULDERED.
What is the NSN for 1M8385?
1M8385 is cataloged in the U.S. Government catalog under NSN 3040-00-192-8461. 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.