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B63 — RESISTOR,VARIABLE,NONWIRE WOUND,

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

B63: RESISTOR,VARIABLE,NONWIRE WOUND,.

RESISTOR,VARIABLE,NONWIRE WOUND,. Key specifications include material: OIL LUBRICATING LUBRICATION, body_width: 0.750 INCHES NOMINAL IN, bore_shape: STRAIGHT, body_height: 0.400 INCHES MAXIMUM IN, body_length: 0.750 INCHES NOMINAL IN, corner_shape: SQUARE ALL CORNERS. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-144-8900, 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
B63
NSN: 3110-00-144-8900
NIINs: 001448900, 002342244, 002802397, 004714932, 005408382, 008022360, 010290840
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 00724 — RAYTHEON COMPANY (USA)
SPECIFICATIONS
materialOIL LUBRICATING LUBRICATION
body_width0.750 INCHES NOMINAL IN
bore_shapeSTRAIGHT
body_height0.400 INCHES MAXIMUM IN
body_length0.750 INCHES NOMINAL IN
corner_shapeSQUARE ALL CORNERS
bore_diameter15.00 MILLIMETERS NOMINAL MM
overall_width11.0 MILLIMETERS NOMINAL MM
inclosure_typeFULLY INCLOSED
load_directionRADIAL
overall_length0.3700 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN
surface_finishGROUND
NSN3110-00-144-8900
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: B63 · 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: GREASE
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
SURFACE FINISH: GROUND
•
SHIELD QUANTITY: 2
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 35.00 MILLIMETERS NOMINAL MM
•
BORE SHAPE: STRAIGHT
TECHNICAL CHARACTERISTICS
LUBRICATION MATERIALGREASE
INTERNAL FIT-UP DESIGNATIONSTANDARD
SURFACE FINISHGROUND
SHIELD QUANTITY2
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
OVERALL WIDTH11.0 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER35.00 MILLIMETERS NOMINAL MM
BORE SHAPESTRAIGHT
NONDEFINITIVE SPEC/STD DATA111 TYPE AND 3 CLASS AND 00 GRADE
LOAD DIRECTIONRADIAL
SUBSTITUTES & CROSS-REFERENCES 9
X13073Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
77502XR1BReference document
Same NSN cross-reference
Reference document — Secondary reference
202FFReference document
Same NSN cross-reference
Reference document — Secondary reference
26009-00Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5097Reference document
Same NSN cross-reference
Reference document — Secondary reference
W365Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B63?
B63 is a RESISTOR,VARIABLE,NONWIRE WOUND,.
What parts can replace B63?
There are 9 known substitutes for B63: X13073, 77502XR1B, 202FF and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B63?
B63 is cataloged in the U.S. Government catalog under NSN 3110-00-144-8900. 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.