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Technical Data Sheet
PartsTable / COMPONENT / M81793/03-HJ2N5D1A1
M81793/03-HJ2N5D1A1 ✓ Verified by PartsTable
— · TAPERED BEARING
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

The M81793/03-HJ2N5D1A1 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-731-1721, 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
M81793/03-HJ2N5D1A1
NSN: 3110-00-731-1721
FSC: 3110
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberM81793/03-HJ2N5D1A1
NSN3110-00-731-1721
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: M81793/03-HJ2N5D1A1 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
INTERNAL CLEARANCE: 0.0005 INCHES MINIMUM RADIAL AND 0.0008 INCHES MAXIMUM RADIAL IN
•
BORE SHAPE: STRAIGHT
•
MATERIAL: STEEL CORROSION RESISTING RETAINER
•
NONDEFINITIVE SPEC/STD DATA: 115 TYPE AND 50 GRADE
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH0.1562 INCHES NOMINAL IN
INTERNAL CLEARANCE0.0005 INCHES MINIMUM RADIAL AND 0.0008 INCHES MAXIMUM RADIAL IN
BORE SHAPESTRAIGHT
MATERIALSTEEL CORROSION RESISTING RETAINER
MATERIALSTEEL COMP 440C INNER RING
NONDEFINITIVE SPEC/STD DATA115 TYPE AND 50 GRADE
MATERIALSTEEL COMP 440C OUTER RING
MATERIALSTEEL COMP 440C BALL
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE BALL
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 32
SS6632FCHHABEC5LG20Interchangeable
interchangeable cross-reference
interchangeable
MRS77SRNM1224ZDEInterchangeable
interchangeable cross-reference
interchangeable
8531067Interchangeable
interchangeable cross-reference
interchangeable
FFB171TYPE115GRADE50Interchangeable
interchangeable cross-reference
interchangeable
859546Interchangeable
interchangeable cross-reference
interchangeable
77NM0816Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M81793/03-HJ2N5D1A1?
M81793/03-HJ2N5D1A1 is a M81793/03-HJ2N5D1A1.
What parts can replace M81793/03-HJ2N5D1A1?
There are 32 known substitutes for M81793/03-HJ2N5D1A1: SS6632FCHHABEC5LG20, MRS77SRNM1224ZDE, 8531067 and 29 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M81793/03-HJ2N5D1A1?
M81793/03-HJ2N5D1A1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-731-1721. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026