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Technical Data Sheet
PartsTable / COMPONENT / BACB10B87
BACB10B87 ✓ 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 BEARING,ROLLER,NEEDLE is a the manufacturer industrial component. Key specifications include bore_diameter: 3.7492 INCHES MINIMUM AND 3.7500 INCHES MAXIMUM IN, alignment_type: RIGID, surface_finish: GROUND, inner_ring_width: 0.4950 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN, outer_ring_width: 0.2940 INCHES MINIMUM AND 0.2990 INCHES MAXIMUM IN, special_features: RETAINING RINGS,BRASS QQ-W-321C OR CORROSION RESIS STEEL QQ-W-423. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-260-0489, 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
BACB10B87
NSN: 3110-01-260-0489
FSC: 3110
CAGE: 81205 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL COMP 1070 OR STEEL COMP 1074 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1085 OR STEEL COMP 1086 OR STEEL COMP 1090 END PLATE
bore_diameter3.7492 INCHES MINIMUM AND 3.7500 INCHES MAXIMUM IN
alignment_typeRIGID
surface_finishGROUND
inner_ring_width0.4950 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
outer_ring_width0.2940 INCHES MINIMUM AND 0.2990 INCHES MAXIMUM IN
special_featuresRETAINING RINGS,BRASS QQ-W-321C OR CORROSION RESIS STEEL QQ-W-423
style_designatorAIRFRAME, HARDENED AND GROUND, NON-SEPARABLE
surface_treatmentCADMIUM EXPOSED SURFACES AS MOUNTED
lubrication_materialGREASE
overall_outside_diameter4.6240 INCHES MINIMUM AND 4.6250 INCHES MAXIMUM IN
specification/standard_data81205-BACB10B MANUFACTURERS STANDARD
NSN3110-01-260-0489
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: BACB10B87 · 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 DOCUMENT AND CLASSIFICATION: MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
•
BORE DIAMETER: 3.7492 INCHES MINIMUM AND 3.7500 INCHES MAXIMUM IN
•
SURFACE FINISH: GROUND
•
ALIGNMENT TYPE: RIGID
•
OUTER RING WIDTH: 0.2940 INCHES MINIMUM AND 0.2990 INCHES MAXIMUM IN
•
LUBRICATION MATERIAL: GREASE
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
TECHNICAL CHARACTERISTICS (FLIS)
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
BORE DIAMETER3.7492 INCHES MINIMUM AND 3.7500 INCHES MAXIMUM IN
SURFACE FINISHGROUND
ALIGNMENT TYPERIGID
SPECIAL FEATURESRETAINING RINGS,BRASS QQ-W-321C OR CORROSION RESIS STEEL QQ-W-423
OUTER RING WIDTH0.2940 INCHES MINIMUM AND 0.2990 INCHES MAXIMUM IN
LUBRICATION MATERIALGREASE
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
INNER RING WIDTH0.4950 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM EXPOSED SURFACES AS MOUNTED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
12315Interchangeable
interchangeable cross-reference
interchangeable
9A022-1Interchangeable
interchangeable cross-reference
interchangeable
44V11469Interchangeable
interchangeable cross-reference
interchangeable
2410 1-9/16Interchangeable
interchangeable cross-reference
interchangeable
T-100Interchangeable
interchangeable cross-reference
interchangeable
200 1-9/16Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BACB10B87?
BACB10B87 is a BEARING,ROLLER,NEEDLE.
What parts can replace BACB10B87?
There are 20 known substitutes for BACB10B87: 12315, 9A022-1, 44V11469 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BACB10B87?
BACB10B87 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-260-0489. 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