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278447R91 — BEARING HALF SET,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

278447R91: BEARING HALF SET,SLEEVE.

The BEARING HALF SET,SLEEVE is a the manufacturer industrial component. Key specifications include end_item_name: LOADER,SCOOP TYPE, document_source: 29510, end_item_source: 29510, end_item_identification: 3805-01-052-9043, component_document_origin: GOVERNMENT. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-293-0119, 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
278447R91
NSN: 3120-01-293-0119
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 0SAT8 — KOMATSU AMERICA CORP. (USA)
SPECIFICATIONS
end_item_nameLOADER,SCOOP TYPE
document_source29510
end_item_source29510
end_item_identification3805-01-052-9043
component_document_originGOVERNMENT
NSN3120-01-293-0119
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 278447R91 · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
END ITEM SOURCE: 29510
•
COMPONENT DOCUMENT ORIGIN: GOVERNMENT
•
END ITEM NAME: LOADER,SCOOP TYPE
•
DOCUMENT SOURCE: 29510
TECHNICAL CHARACTERISTICS
END ITEM SOURCE29510
COMPONENT DOCUMENT ORIGINGOVERNMENT
END ITEM NAMELOADER,SCOOP TYPE
DOCUMENT SOURCE29510
END ITEM IDENTIFICATION3805-01-052-9043
OTHER ITEMS IN FSC 3120 — Bearings, Plain, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3120-00-001-1288 3120-00-001-1835 3120-00-001-1838 3120-00-001-1928 3120-00-001-1934 3120-00-001-3933 3120-00-001-3937 3120-00-001-3938
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 278447R91?
278447R91 is a BEARING HALF SET,SLEEVE.
What is the NSN for 278447R91?
278447R91 is cataloged in the U.S. Government catalog under NSN 3120-01-293-0119. 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.