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63A81B44 — SHAFT,SHOULDERED

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

63A81B44: SHAFT,SHOULDERED.

The SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL, end_similarity: IDENTICAL, overall_length: 18.875 INCHES NOMINAL IN, surface_finish: 125.0 MICROINCHES, first_end_style: FLAT KEYWAY, first_end_diameter: 0.7495 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3040-00-962-0710, 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
63A81B44
NSN: 3040-00-962-0710
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL
step_quantity2
end_similarityIDENTICAL
overall_length18.875 INCHES NOMINAL IN
surface_finish125.0 MICROINCHES
first_end_styleFLAT KEYWAY
first_end_diameter0.7495 INCHES NOMINAL IN
fsc_application_dataTRAIL,LIFT,BOMB
largest_step_diameter1.000 INCHES NOMINAL IN
external_keyway_length1.750 INCHES NOMINAL FIRST END IN
first_end_keyway_depth0.096 INCHES NOMINAL IN
first_end_keyway_width0.1880 INCHES NOMINAL IN
NSN3040-00-962-0710
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SHAFT,SHOULDERED TITLE COMPONENT PN 63A81B44 MFR SHAFT,SHOULDERED
KEY FEATURES
•
SURFACE FINISH: 125.0 MICROINCHES
•
FSC APPLICATION DATA: TRAIL,LIFT,BOMB
•
STEP QUANTITY: 2
•
FIRST END DIAMETER: 0.7495 INCHES NOMINAL IN
•
LARGEST STEP DIAMETER: 1.000 INCHES NOMINAL IN
•
FIRST END STYLE: FLAT KEYWAY
•
FIRST END KEYWAY DEPTH: 0.096 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH125.0 MICROINCHES
FSC APPLICATION DATATRAIL,LIFT,BOMB
STEP QUANTITY2
FIRST END DIAMETER0.7495 INCHES NOMINAL IN
LARGEST STEP DIAMETER1.000 INCHES NOMINAL IN
FIRST END STYLEFLAT KEYWAY
OVERALL LENGTH18.875 INCHES NOMINAL IN
FIRST END KEYWAY DEPTH0.096 INCHES NOMINAL IN
END SIMILARITYIDENTICAL
MATERIALSTEEL
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 1
63A81844Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 63A81B44?
63A81B44 is a SHAFT,SHOULDERED.
What parts can replace 63A81B44?
There is 1 known substitute for 63A81B44: 63A81844. Substitute compatibility should be verified for your specific system.
What is the NSN for 63A81B44?
63A81B44 is cataloged in the U.S. Government catalog under NSN 3040-00-962-0710. 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.