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303249 — BEARING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

303249: BEARING,SLEEVE.

The BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include part_name_assigned_by_controlling_agency: REMOVER, CRANKSHAFT TIMING PULLEY. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-287-8639, 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
303249
NSN: 3120-00-287-8639
NIINs: 002878639, 003977365, 016702811
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 1ML14 — BRINKLEY TECHNOLOGY GROUP LLC DBA HERCULES MANUFACTURING (USA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyREMOVER, CRANKSHAFT TIMING PULLEY
NSN3120-00-287-8639
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 303249 · 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
•
CORNER SHAPE: SQUARE ALL CORNERS
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BODY OUTSIDE DIAMETER: 1.5630 INCHES MINIMUM AND 1.5640 INCHES MAXIMUM IN
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STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
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MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
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BODY INSIDE DIAMETER: 1.3600 INCHES MINIMUM AND 1.3650 INCHES MAXIMUM IN
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LUBRICANT ACCOMMODATION STYLE: GROOVED CIRCULAR
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ANTIROTATION/LUBRICATION TYPE AND QUANTITY: 2 HOLE
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
BODY OUTSIDE DIAMETER1.5630 INCHES MINIMUM AND 1.5640 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH1.8650 INCHES MINIMUM AND 1.8750 INCHES MAXIMUM IN
BODY INSIDE DIAMETER1.3600 INCHES MINIMUM AND 1.3650 INCHES MAXIMUM IN
LUBRICANT ACCOMMODATION STYLEGROOVED CIRCULAR
ANTIROTATION/LUBRICATION TYPE AND QUANTITY2 HOLE
MATERIALCOPPER ALLOY 905 OVERALL
MATERIALOIL LUBRICATING LUBRICATION
SUBSTITUTES & CROSS-REFERENCES 2
H303249Reference document
Same NSN cross-reference
Reference document — Secondary reference
6303249Reference 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 303249?
303249 is a BEARING,SLEEVE.
What parts can replace 303249?
There are 2 known substitutes for 303249: H303249, 6303249. Substitute compatibility should be verified for your specific system.
What is the NSN for 303249?
303249 is cataloged in the U.S. Government catalog under NSN 3120-00-287-8639. 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.