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AA59644-104EXBB — BEARING,ROLLER,CYLINDRICAL

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

AA59644-104EXBB: BEARING,ROLLER,CYLINDRICAL.

The BEARING,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include body_width: 3.812 INCHES NOMINAL IN, body_height: 3.750 INCHES NOMINAL IN, body_length: 4.125 INCHES NOMINAL IN, inclosure_type: OPEN, mounting_method: THREADED HOLE(S) SINGLE GROUP, frequency_rating: 400.0 HERTZ NOMINAL SINGLE COMPONENT. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-668-7303, 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
AA59644-104EXBB
NSN: 3110-01-668-7303
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 58536 — FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
body_width3.812 INCHES NOMINAL IN
body_height3.750 INCHES NOMINAL IN
body_length4.125 INCHES NOMINAL IN
inclosure_typeOPEN
mounting_methodTHREADED HOLE(S) SINGLE GROUP
frequency_rating400.0 HERTZ NOMINAL SINGLE COMPONENT
special_featuresCENTER TAP OF SECONDARY WINDING NO. 1 IS USED AS COMMON FOR 222 V AND 305 V TAPS V
nominal_thread_size0.164 INCHES SINGLE GROUP IN
reliability_indicatorNOT ESTABLISHED
thread_quantity_per_inch32 SINGLE GROUP
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
mounting_facility_quantity4 SINGLE GROUP
NSN3110-01-668-7303
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: AA59644-104EXBB · 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
SUBSTITUTES & CROSS-REFERENCES 2
134 623Reference document
Same NSN cross-reference
Reference document — Secondary reference
MIL134 623Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AA59644-104EXBB?
AA59644-104EXBB is a BEARING,ROLLER,CYLINDRICAL.
What parts can replace AA59644-104EXBB?
There are 2 known substitutes for AA59644-104EXBB: 134 623, MIL134 623. Substitute compatibility should be verified for your specific system.
What is the NSN for AA59644-104EXBB?
AA59644-104EXBB is cataloged in the U.S. Government catalog under NSN 3110-01-668-7303. 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.