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Technical Data Sheet
PartsTable / COMPONENT / MIL-B-81793/2
MIL-B-81793/2 ✓ 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 MIL-B-81793/2 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 3110-00-293-9114, 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
MIL-B-81793/2
NSN: 3110-00-293-9114
FSC: 3110
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberMIL-B-81793/2
NSN3110-00-293-9114
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: MIL-B-81793/2 · 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
•
BORE DIAMETER: 0.1873 INCHES MINIMUM AND 0.1875 INCHES MAXIMUM IN
•
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-L-6085 MIL SPEC SINGLE MATERIAL RESPONSE
•
RETAINER FABRICATION METHOD: PRESSED
•
INTERNAL CLEARANCE: 0.0005 INCHES MINIMUM RADIAL AND 0.0008 INCHES MAXIMUM RADIAL IN
•
SURFACE FINISH: GROUND
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.7
•
SHIELD QUANTITY: 2
TECHNICAL CHARACTERISTICS (FLIS)
BORE DIAMETER0.1873 INCHES MINIMUM AND 0.1875 INCHES MAXIMUM IN
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-L-6085 MIL SPEC SINGLE MATERIAL RESPONSE
RETAINER FABRICATION METHODPRESSED
INTERNAL CLEARANCE0.0005 INCHES MINIMUM RADIAL AND 0.0008 INCHES MAXIMUM RADIAL IN
SURFACE FINISHGROUND
STANDARD TOLERANCE DESIGNATIONABEC NO.7
SPECIAL FEATUREST0RQUE TESTED,INNER AND OUTER RING RUNOUT 0.0002 IN. IN
SHIELD QUANTITY2
LUBRICATION MATERIALOIL
BORE SHAPESTRAIGHT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
R3SSWX423K5VCA0 O-11Interchangeable
interchangeable cross-reference
interchangeable
R3SSWX33K5VCA00-11Interchangeable
interchangeable cross-reference
interchangeable
R3SSW5VCA00-11Interchangeable
interchangeable cross-reference
interchangeable
R3ZZRA7CB0P58T50L01Interchangeable
interchangeable cross-reference
interchangeable
2504900-2Interchangeable
interchangeable cross-reference
interchangeable
R3SSWX423K5VCB0 O-11Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-B-81793/2?
MIL-B-81793/2 is a MIL-B-81793/2.
What parts can replace MIL-B-81793/2?
There are 14 known substitutes for MIL-B-81793/2: R3SSWX423K5VCA0 O-11, R3SSWX33K5VCA00-11, R3SSW5VCA00-11 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-B-81793/2?
MIL-B-81793/2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-293-9114. 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