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8909-397-001 — SHAFT,SHOULDERED

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

8909-397-001: SHAFT,SHOULDERED.

The SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140, end_similarity: NOT IDENTICAL, overall_length: 1.2190 INCHES NOMINAL IN, surface_finish: 64.0 MICROINCHES, first_end_style: PLAIN, second_end_style: CIRCULAR GROOVED. This part is cataloged in the U.S.

Government catalog under NSN 3040-01-378-8044, 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
8909-397-001
NSN: 3040-01-378-8044
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 20722 — THE ENTWISTLE COMPANY LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 4140
step_quantity2
end_similarityNOT IDENTICAL
overall_length1.2190 INCHES NOMINAL IN
surface_finish64.0 MICROINCHES
first_end_stylePLAIN
second_end_styleCIRCULAR GROOVED
special_featuresFROM SECOND END,HAS HOLE .627-629-INCHES DIA THRU;1.000 INCHES DIA C-BORE .625 DEEP IN
first_end_diameter1.8500 INCHES NOMINAL IN
second_end_diameter1.3785 INCHES MAXIMUM IN
largest_step_diameter1.8500 INCHES NOMINAL IN
end_item_identification3930-01-330-8907
NSN3040-01-378-8044
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SHAFT,SHOULDERED TITLE COMPONENT PN 8909-397-001 MFR SHAFT,SHOULDERED
KEY FEATURES
•
SURFACE FINISH: 64.0 MICROINCHES
•
STEP QUANTITY: 2
•
FIRST END DIAMETER: 1.8500 INCHES NOMINAL IN
•
SECOND END DIAMETER: 1.3785 INCHES MAXIMUM IN
•
LARGEST STEP DIAMETER: 1.8500 INCHES NOMINAL IN
•
FIRST END STYLE: PLAIN
•
SECOND END GROOVE DIAMETER: 1.3120 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH64.0 MICROINCHES
STEP QUANTITY2
FIRST END DIAMETER1.8500 INCHES NOMINAL IN
SECOND END DIAMETER1.3785 INCHES MAXIMUM IN
LARGEST STEP DIAMETER1.8500 INCHES NOMINAL IN
FIRST END STYLEPLAIN
OVERALL LENGTH1.2190 INCHES NOMINAL IN
SECOND END GROOVE DIAMETER1.3120 INCHES NOMINAL IN
END SIMILARITYNOT IDENTICAL
SECOND END GROOVE WIDTH0.6300 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 8909-397-001?
8909-397-001 is a SHAFT,SHOULDERED.
What is the NSN for 8909-397-001?
8909-397-001 is cataloged in the U.S. Government catalog under NSN 3040-01-378-8044. 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.