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1B5086 — BEARING,BALL,ANNULAR

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

1B5086: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_width: 0.8125 INCHES NOMINAL IN, outside_diameter: 3.8750 INCHES NOMINAL IN, special_features: STEEP ANGLE, style_designator: NORMAL ANGLE, backface_corner_radius: 0.0310 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-100-0599, 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
1B5086
NSN: 3110-00-100-0599
NIINs: 001000599, 013896292
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 65282 — WHITE MOTOR CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_width0.8125 INCHES NOMINAL IN
outside_diameter3.8750 INCHES NOMINAL IN
special_featuresSTEEP ANGLE
style_designatorNORMAL ANGLE
backface_corner_radius0.0310 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-100-0599
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1B5086 · 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
•
STYLE DESIGNATOR: NORMAL ANGLE
•
OUTSIDE DIAMETER: 3.8750 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.0310 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORNORMAL ANGLE
OVERALL WIDTH0.8125 INCHES NOMINAL IN
OUTSIDE DIAMETER3.8750 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.0310 INCHES NOMINAL IN
SPECIAL FEATURESSTEEP ANGLE
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 7
64AX37Reference document
Same NSN cross-reference
Reference document — Secondary reference
310470Reference document
Same NSN cross-reference
Reference document — Secondary reference
313380Reference document
Same NSN cross-reference
Reference document — Secondary reference
A1228P1004Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
53387Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
3A0070Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1B5086?
1B5086 is a BEARING,BALL,ANNULAR.
What parts can replace 1B5086?
There are 7 known substitutes for 1B5086: 64AX37, 310470, 313380 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1B5086?
1B5086 is cataloged in the U.S. Government catalog under NSN 3110-00-100-0599. 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.