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Technical Data Sheet
PartsTable / COMPONENT / MB120
MB120 ✓ 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 SEMICONDUCTOR DEVICE,DIODE is a the manufacturer industrial component. Key specifications include base_style: MINIATURE BAYONET, bulb_style: T (TUBULAR), overall_length: 1.200 INCHES MAXIMUM IN, voltage_rating: 120.000 VOLTS NOMINAL, wattage_rating: 3.000 WATTS, bulb_designator: T-2. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-662-8453, 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
MB120
NSN: 3120-00-662-8453
FSC: 3120
CAGE: 59875 — EATON CORP DBA EATON AEROSPACE JACKSON (USA)
SPECIFICATIONS
base_styleMINIATURE BAYONET
bulb_styleT (TUBULAR)
overall_length1.200 INCHES MAXIMUM IN
voltage_rating120.000 VOLTS NOMINAL
wattage_rating3.000 WATTS
bulb_designatorT-2
rated_average_lifeHOURS
light_output_rating0.360 SPHERICAL CANDLEPOWER NOMINAL SINGLE RATING
filament_designationC-7A A
specification/standard_data08108-120MB MANUFACTURERS STANDARD MB
average_life_rating_in_hours5000.0
emitted_light_characteristicCOLORLESS
NSN3120-00-662-8453
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: MB120 · 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
•
BODY OUTSIDE DIAMETER: 2.6562 INCHES NOMINAL IN
•
CORNER SHAPE: SQUARE ALL CORNERS
•
STYLE DESIGNATOR: SEGMENTED, PLAIN, NO OUTSIDE FLANGES
•
MATERIAL: TIN ALLOY INNER LAYER
•
BODY INSIDE DIAMETER: 2.5000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
BODY OUTSIDE DIAMETER2.6562 INCHES NOMINAL IN
CORNER SHAPESQUARE ALL CORNERS
STYLE DESIGNATORSEGMENTED, PLAIN, NO OUTSIDE FLANGES
MATERIALTIN ALLOY INNER LAYER
MATERIALSTEEL OUTER LAYER
BODY INSIDE DIAMETER2.5000 INCHES NOMINAL IN
OVERALL LENGTH1.2400 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
10111293Interchangeable
interchangeable cross-reference
interchangeable
5042Interchangeable
interchangeable cross-reference
interchangeable
9411244Interchangeable
interchangeable cross-reference
interchangeable
13044Interchangeable
interchangeable cross-reference
interchangeable
125441Interchangeable
interchangeable cross-reference
interchangeable
14448Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MB120?
MB120 is a SEMICONDUCTOR DEVICE,DIODE.
What parts can replace MB120?
There are 22 known substitutes for MB120: 10111293, 5042, 9411244 and 19 more. Substitute compatibility should be verified for your specific system.
Is MB120 still available?
MB120 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