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Technical Data Sheet
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B303502 — BUSHING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

B303502: BUSHING,SLEEVE.

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include corner_shape: CHAMFERED OUTSIDE RIGHT CORNER, overall_length: 1.1875 INCHES NOMINAL IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 3.7485 INCHES MINIMUM AND 3.7515 INCHES MAXIMUM IN, body_outside_diameter: 4.5030 INCHES MINIMUM AND 4.5050 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-032-3651, 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
B303502
NSN: 3120-01-032-3651
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 3X894 — CONTROL FLOW, INC. DBA CONTROL FLOW INC (USA)
SPECIFICATIONS
corner_shapeCHAMFERED OUTSIDE RIGHT CORNER
overall_length1.1875 INCHES NOMINAL IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter3.7485 INCHES MINIMUM AND 3.7515 INCHES MAXIMUM IN
body_outside_diameter4.5030 INCHES MINIMUM AND 4.5050 INCHES MAXIMUM IN
NSN3120-01-032-3651
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: B303502 · 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
•
BODY OUTSIDE DIAMETER: 4.5030 INCHES MINIMUM AND 4.5050 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
BODY INSIDE DIAMETER: 3.7485 INCHES MINIMUM AND 3.7515 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE INSIDE RIGHT CORNER
CORNER SHAPESQUARE INSIDE LEFT CORNER
CORNER SHAPECHAMFERED OUTSIDE LEFT CORNER
CORNER SHAPECHAMFERED OUTSIDE RIGHT CORNER
BODY OUTSIDE DIAMETER4.5030 INCHES MINIMUM AND 4.5050 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
OVERALL LENGTH1.1875 INCHES NOMINAL IN
BODY INSIDE DIAMETER3.7485 INCHES MINIMUM AND 3.7515 INCHES MAXIMUM IN
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 1
PLD301087PC120Reference 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 B303502?
B303502 is a BUSHING,SLEEVE.
What parts can replace B303502?
There is 1 known substitute for B303502: PLD301087PC120. Substitute compatibility should be verified for your specific system.
What is the NSN for B303502?
B303502 is cataloged in the U.S. Government catalog under NSN 3120-01-032-3651. 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.