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Technical Data Sheet
PartsTable / COMPONENT / B15-4
B15-4 ✓ Verified by PartsTable
— · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

The BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include end_item_identification: T.C. OUTFITTING & FURNISHING.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-553-5749, 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
B15-4
NSN: 3120-01-553-5749
FSC: 3120
CAGE: 00141 — ROLLER BEARING CO OF AMERICA, INC DIV PIC DESIGN (USA)
SPECIFICATIONS
end_item_identificationT.C. OUTFITTING & FURNISHING
NSN3120-01-553-5749
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: B15-4 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
5793277Interchangeable
interchangeable cross-reference
interchangeable
6391282Interchangeable
interchangeable cross-reference
interchangeable
5793277 FIND 166Interchangeable
interchangeable cross-reference
interchangeable
B15-3Interchangeable
interchangeable cross-reference
interchangeable
5793277 FIND 060Interchangeable
interchangeable cross-reference
interchangeable
5793277 FIND 059Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B15-4?
B15-4 is a BEARING,SLEEVE.
What parts can replace B15-4?
There are 6 known substitutes for B15-4: 5793277, 6391282, 5793277 FIND 166 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B15-4?
B15-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-553-5749. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026