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Technical Data Sheet
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274844R91 — BEARING,WATER PUMP

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

274844R91: BEARING,WATER PUMP.

The BEARING,WATER PUMP is a the manufacturer industrial component. Key specifications include end_item_identification: TRACTOR,WHEELED,AIRCRAFT MODEL T-180F. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-085-9462, 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
274844R91
NSN: 3110-01-085-9462
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 29510 — KOMATSU AMERICAN INTL CO (USA)
SPECIFICATIONS
end_item_identificationTRACTOR,WHEELED,AIRCRAFT MODEL T-180F
NSN3110-01-085-9462
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 274844R91 · 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
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONTRACTOR,WHEELED,AIRCRAFT MODEL T-180F
SUBSTITUTES & CROSS-REFERENCES 1
ST633Reference 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 274844R91?
274844R91 is a BEARING,WATER PUMP.
What parts can replace 274844R91?
There is 1 known substitute for 274844R91: ST633. Substitute compatibility should be verified for your specific system.
What is the NSN for 274844R91?
274844R91 is cataloged in the U.S. Government catalog under NSN 3110-01-085-9462. 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.