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2JB998-2 — BUSHING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

2JB998-2: BUSHING,SLEEVE.

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 440C OVERALL, corner_shape: SQUARE OUTSIDE LEFT CORNER, flange_width: 0.1250 INCHES NOMINAL IN, overall_length: 0.5625 INCHES NOMINAL IN, style_designator: SOLID, EXTERNAL FLANGE ONE END, body_inside_diameter: 0.3650 INCHES MINIMUM AND 0.3850 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-554-5598, 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
2JB998-2
NSN: 3120-00-554-5598
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 90099 — NORTHROP GRUMMAN SYSTEMS CORPORATION DIV MARINE SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL COMP 440C OVERALL
corner_shapeSQUARE OUTSIDE LEFT CORNER
flange_width0.1250 INCHES NOMINAL IN
overall_length0.5625 INCHES NOMINAL IN
style_designatorSOLID, EXTERNAL FLANGE ONE END
body_inside_diameter0.3650 INCHES MINIMUM AND 0.3850 INCHES MAXIMUM IN
body_outside_diameter0.6260 INCHES MINIMUM AND 0.6263 INCHES MAXIMUM IN
flange_outside_diameter1.3025 INCHES MINIMUM AND 1.3225 INCHES MAXIMUM IN
material_document_and_classificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN3120-00-554-5598
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 2JB998-2 · 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 INSIDE RIGHT CORNER
•
FLANGE OUTSIDE DIAMETER: 1.3025 INCHES MINIMUM AND 1.3225 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 0.6260 INCHES MINIMUM AND 0.6263 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE INSIDE RIGHT CORNER
CORNER SHAPESQUARE LEFT FLANGE BODY CORNER
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
CORNER SHAPESQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE INSIDE LEFT CORNER
FLANGE OUTSIDE DIAMETER1.3025 INCHES MINIMUM AND 1.3225 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER0.6260 INCHES MINIMUM AND 0.6263 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, EXTERNAL FLANGE ONE END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
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 2JB998-2?
2JB998-2 is a BUSHING,SLEEVE.
What is the NSN for 2JB998-2?
2JB998-2 is cataloged in the U.S. Government catalog under NSN 3120-00-554-5598. 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.