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Technical Data Sheet
PartsTable / COMPONENT / MB266
MB266 ✓ 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: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.6406 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, width_across_flats: 1.1250 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-362-1166, 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
MB266
NSN: 3120-00-362-1166
FSC: 3120
CAGE: 0AX87 — JPI TRANSPORTATION PRODUCTS INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.6406 INCHES NOMINAL IN
special_featuresPLATING: HOT DIPPED GALVANIZED; THREAD DENSITY: COARSE; DIAMETER: 3/4 IN; THREAD COUNT: 10; DIMENSIONAL STANDARD: ASME B18.2.2 IN
thread_directionRIGHT-HAND
width_across_flats1.1250 INCHES NOMINAL IN
NSN3120-00-362-1166
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: MB266 · 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 25
02-0619-20Interchangeable
interchangeable cross-reference
interchangeable
SS77506LY1ZFInterchangeable
interchangeable cross-reference
interchangeable
2-619Interchangeable
interchangeable cross-reference
interchangeable
2403-1Interchangeable
interchangeable cross-reference
interchangeable
310500-1Interchangeable
interchangeable cross-reference
interchangeable
127-2 1/2RInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MB266?
MB266 is a BEARING,SLEEVE.
What parts can replace MB266?
There are 25 known substitutes for MB266: 02-0619-20, SS77506LY1ZF, 2-619 and 22 more. Substitute compatibility should be verified for your specific system.
Is MB266 still available?
MB266 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026