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Technical Data Sheet
PartsTable / COMPONENT / 3Q577B3
3Q577B3 ✓ 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 material: COPPER ALLOY OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 0.6200 INCHES MINIMUM AND 0.6300 INCHES MAXIMUM IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 0.2510 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM IN, body_outside_diameter: 0.3760 INCHES MINIMUM AND 0.3770 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-679-1463, 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
3Q577B3
NSN: 3120-00-679-1463
FSC: 3120
CAGE: 98296 — STANDARD MFG CO INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
corner_shapeSQUARE ALL CORNERS
overall_length0.6200 INCHES MINIMUM AND 0.6300 INCHES MAXIMUM IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter0.2510 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM IN
body_outside_diameter0.3760 INCHES MINIMUM AND 0.3770 INCHES MAXIMUM IN
NSN3120-00-679-1463
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 3Q577B3 · 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 INSIDE DIAMETER: 0.2510 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM IN
•
MATERIAL: COPPER ALLOY OVERALL
•
BODY OUTSIDE DIAMETER: 0.3760 INCHES MINIMUM AND 0.3770 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
TECHNICAL CHARACTERISTICS (FLIS)
CORNER SHAPESQUARE ALL CORNERS
BODY INSIDE DIAMETER0.2510 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY OVERALL
BODY OUTSIDE DIAMETER0.3760 INCHES MINIMUM AND 0.3770 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
OVERALL LENGTH0.6200 INCHES MINIMUM AND 0.6300 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
43125Interchangeable
interchangeable cross-reference
interchangeable
B465Interchangeable
interchangeable cross-reference
interchangeable
YAV14L65Interchangeable
interchangeable cross-reference
interchangeable
B46SET5Interchangeable
interchangeable cross-reference
interchangeable
621815Interchangeable
interchangeable cross-reference
interchangeable
B4652Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3Q577B3?
3Q577B3 is a BEARING,SLEEVE.
What parts can replace 3Q577B3?
There are 9 known substitutes for 3Q577B3: 43125, B465, YAV14L65 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3Q577B3?
3Q577B3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-679-1463. 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