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MIL-B-81793 — BEARING,BALL,ANNULAR

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

MIL-B-81793: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, bore_shape: STRAIGHT, bore_diameter: 0.2500 INCHES NOMINAL IN, overall_width: 0.1960 INCHES NOMINAL IN, load_direction: RADIAL, surface_finish: GROUND. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-007-2941, 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
NSN: 3110-00-007-2941
NIINs: 000072941, 000237622, 000497727, 000510866, 000572593, 000596189, 000661624, 000695597, 000700184, 000801063, 000829544, 000853150, 000857842, 000857866, 000875701, 000979614, 000979615, 001033098, 001089435, 001091873, 001129406, 001182582, 001361477, 001518242, 001571940, 001797580, 001806687, 001806788, 001835782, 001865017, 001982045, 001982057, 002044999, 002252880, 002274521, 002787232, 002938442, 002938758, 003730158, 004063741, 004386796, 004693816, 004776732, 004968932, 005185725, 005404681, 005407111, 005554469, 005609972, 006182343, 006186643, 006259243, 006897126, 007176960, 007202331, 007202336, 007202510, 007220987, 007262407, 007270392, 007275019, 007332622, 007610652, 007775529, 007815641, 007827571, 007935170, 007960004, 007985464, 008022739, 008057205, 008064948, 008123603, 008190564, 008291263, 008403502, 008415273, 008421296, 008468330, 008536205, 008764407, 008786498, 008809629, 008811350, 008938232, 009152217, 009355716, 009476971, 009637285, 009697807, 009784810, 009797835, 009805793, 010054092, 010122547, 010448709, 010452551, 010514161, 010518203, 010937908, 012067423, 012180729, 012708931, 012817835, 012866142, 013002960, 013017887, 013433546, 013488563, 015165327, 015691521, 015961076
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
bore_shapeSTRAIGHT
bore_diameter0.2500 INCHES NOMINAL IN
overall_width0.1960 INCHES NOMINAL IN
load_directionRADIAL
surface_finishGROUND
shield_quantity2
special_featuresI.D.
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
lubrication_materialGREASE
overall_outside_diameter0.6250 INCHES NOMINAL IN
retainer_fabrication_methodPRESSED
NSN3110-00-007-2941
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: MIL-B-81793 · 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
•
LUBRICATION MATERIAL: OIL
•
INTERNAL CLEARANCE: 0.0002 INCHES MINIMUM RADIAL AND 0.0005 INCHES MAXIMUM RADIAL IN
•
FLANGE OUTSIDE DIAMETER: 0.5650 INCHES NOMINAL IN
•
SURFACE FINISH: GROUND
•
SHIELD QUANTITY: 2
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
BORE SHAPE: STRAIGHT
TECHNICAL CHARACTERISTICS
LUBRICATION MATERIALOIL
INTERNAL CLEARANCE0.0002 INCHES MINIMUM RADIAL AND 0.0005 INCHES MAXIMUM RADIAL IN
FLANGE OUTSIDE DIAMETER0.5650 INCHES NOMINAL IN
SURFACE FINISHGROUND
SHIELD QUANTITY2
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
OVERALL WIDTH0.1960 INCHES NOMINAL IN
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
SPECIAL FEATURESBORE CALIBRATED IN IN CREMENTS OF 0.0001 IN. AND OD CALIBRATED 0.00000 IN. TO 0.00015 IN. AND 0.00015 IN. TO 0.00030 IN. IN
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MIL-B-81793?
MIL-B-81793 is a BEARING,BALL,ANNULAR.
What is the NSN for MIL-B-81793?
MIL-B-81793 is cataloged in the U.S. Government catalog under NSN 3110-00-007-2941. This indicates validated use in U.S. government and defense supply chains.
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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.