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Technical Data Sheet
PartsTable / COMPONENT / MB1903-1P7
MB1903-1P7 ✓ Verified by PartsTable
— · TAPERED BEARING
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

The BEARING,ROLLER,SELF-ALIGNING is a the manufacturer industrial component. Key specifications include phase: SINGLE SINGLE VOLTAGE, width: 1.375 INCHES NOMINAL IN, length: 1.170 INCHES NOMINAL IN, material: ALUMINUM OR STEEL OR STEEL CORROSION RESISTING SHEATH, body_style: STRIP ELEMENT, bore_shape: STRAIGHT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-1443, 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
MB1903-1P7
NSN: 3110-00-156-1443
FSC: 3110
CAGE: 20263 — MKT GEOTECHNICAL SYSTEMS (USA)
SPECIFICATIONS
phaseSINGLE SINGLE VOLTAGE
width1.375 INCHES NOMINAL IN
length1.170 INCHES NOMINAL IN
materialALUMINUM OR STEEL OR STEEL CORROSION RESISTING SHEATH
body_styleSTRIP ELEMENT
bore_shapeSTRAIGHT
head_styleHEXAGON
head_height0.226 INCHES MINIMUM AND 0.268 INCHES MAXIMUM IN
insert_size0.375-24 UNF CLASS 3A A
bore_diameter35.00 MILLIMETERS NOMINAL MM
seal_quantity1
load_directionRADIAL
NSN3110-00-156-1443
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: MB1903-1P7 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
8148650Interchangeable
interchangeable cross-reference
interchangeable
22219Interchangeable
interchangeable cross-reference
interchangeable
224119Interchangeable
interchangeable cross-reference
interchangeable
1513310Interchangeable
interchangeable cross-reference
interchangeable
ANSI B18.2.1Interchangeable
interchangeable cross-reference
interchangeable
FF-B-561Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MB1903-1P7?
MB1903-1P7 is a BEARING,ROLLER,SELF-ALIGNING.
What parts can replace MB1903-1P7?
There are 17 known substitutes for MB1903-1P7: 8148650, 22219, 224119 and 14 more. Substitute compatibility should be verified for your specific system.
Is MB1903-1P7 still available?
MB1903-1P7 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