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1111299 — BEARING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

1111299: BEARING,SLEEVE.

The BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include terminal_type: WIRE LEAD, overall_length: 5.500 INCHES NOMINAL IN, inside_diameter: 4.346 INCHES NOMINAL IN, overall_diameter: 6.125 INCHES NOMINAL IN, main_pole_quantity: 12, end_item_identification: GENERATOR,AC PART NO. 28E20-19B.

This part is cataloged in the U.S. Government catalog under NSN 3120-00-399-4443, 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
1111299
NSN: 3120-00-399-4443
NIINs: 003994443, 006901998
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 90099 — NORTHROP GRUMMAN SYSTEMS CORPORATION DIV MARINE SYSTEMS (USA)
SPECIFICATIONS
terminal_typeWIRE LEAD
overall_length5.500 INCHES NOMINAL IN
inside_diameter4.346 INCHES NOMINAL IN
overall_diameter6.125 INCHES NOMINAL IN
terminal_quantity6
main_pole_quantity12
end_item_identificationGENERATOR,AC PART NO. 28E20-19B
NSN3120-00-399-4443
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 1111299 · 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
•
BODY OUTSIDE DIAMETER: 4.2500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SEGMENTED, PLAIN, NO OUTSIDE FLANGES
•
BODY INSIDE DIAMETER: 2.0000 INCHES NOMINAL IN
•
MATERIAL: TIN INNER LAYER
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
BODY OUTSIDE DIAMETER4.2500 INCHES NOMINAL IN
STYLE DESIGNATORSEGMENTED, PLAIN, NO OUTSIDE FLANGES
OVERALL LENGTH2.2500 INCHES NOMINAL IN
BODY INSIDE DIAMETER2.0000 INCHES NOMINAL IN
MATERIALTIN INNER LAYER
MATERIALSTEEL OUTER LAYER
SUBSTITUTES & CROSS-REFERENCES 5
29J307PC2T07Reference document
Same NSN cross-reference
Reference document — Secondary reference
29J301PC5TURBENDSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
29J358PC23T028Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
49J307PC2T07Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
49J301PC5TURBENDSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1111299?
1111299 is a BEARING,SLEEVE.
What parts can replace 1111299?
There are 5 known substitutes for 1111299: 29J307PC2T07, 29J301PC5TURBEND, 29J358PC23T028 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1111299?
1111299 is cataloged in the U.S. Government catalog under NSN 3120-00-399-4443. 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.