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179B8412AY1 — SHAFT,SHOULDERED

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

179B8412AY1: SHAFT,SHOULDERED.

The SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL, step_quantity: 12, end_similarity: NOT IDENTICAL, overall_length: 43.1300 INCHES MAXIMUM IN, first_end_style: PLAIN, second_end_style: FLAT KEYWAY. This part is cataloged in the U.S.

Government catalog under NSN 3040-01-370-2848, 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
179B8412AY1
NSN: 3040-01-370-2848
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 06351 — MICROWAVE ENGINEERING CORPORATION (USA)
SPECIFICATIONS
materialSTEEL
step_quantity12
end_similarityNOT IDENTICAL
overall_length43.1300 INCHES MAXIMUM IN
first_end_stylePLAIN
second_end_styleFLAT KEYWAY
special_featuresHAS KEYWAY OFF CENTER 20.75 INCHES LONG,0.500 INCHES WIDE;0.250 INCHES DEEP IN
first_end_diameter2.6250 INCHES MAXIMUM IN
second_end_diameter2.3750 INCHES MAXIMUM IN
largest_step_diameter4.3780 INCHES MAXIMUM IN
external_keyway_length3.0000 INCHES NOMINAL SECOND END IN
second_end_keyway_depth0.3120 INCHES NOMINAL IN
NSN3040-01-370-2848
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SHAFT,SHOULDERED TITLE COMPONENT PN 179B8412AY1 MFR SHAFT,SHOULDERED
KEY FEATURES
•
STEP QUANTITY: 12
•
FIRST END DIAMETER: 2.6250 INCHES MAXIMUM IN
•
SECOND END DIAMETER: 2.3750 INCHES MAXIMUM IN
•
LARGEST STEP DIAMETER: 4.3780 INCHES MAXIMUM IN
•
FIRST END STYLE: PLAIN
•
SECOND END KEYWAY WIDTH: 0.6250 INCHES MAXIMUM IN
•
SECOND END KEYWAY DEPTH: 0.3120 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STEP QUANTITY12
FIRST END DIAMETER2.6250 INCHES MAXIMUM IN
SECOND END DIAMETER2.3750 INCHES MAXIMUM IN
LARGEST STEP DIAMETER4.3780 INCHES MAXIMUM IN
FIRST END STYLEPLAIN
SECOND END KEYWAY WIDTH0.6250 INCHES MAXIMUM IN
OVERALL LENGTH43.1300 INCHES MAXIMUM IN
SECOND END KEYWAY DEPTH0.3120 INCHES NOMINAL IN
END SIMILARITYNOT IDENTICAL
SPECIAL FEATURESHAS KEYWAY OFF CENTER 20.75 INCHES LONG,0.500 INCHES WIDE;0.250 INCHES DEEP IN
SUBSTITUTES & CROSS-REFERENCES 2
119D3966Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
119D3966 PART 8Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 179B8412AY1?
179B8412AY1 is a SHAFT,SHOULDERED.
What parts can replace 179B8412AY1?
There are 2 known substitutes for 179B8412AY1: 119D3966, 119D3966 PART 8. Substitute compatibility should be verified for your specific system.
What is the NSN for 179B8412AY1?
179B8412AY1 is cataloged in the U.S. Government catalog under NSN 3040-01-370-2848. 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.