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Technical Data Sheet
PartsTable / COMPONENT / 77203-625M1UB3
77203-625M1UB3 ✓ 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,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 0.6250 INCHES NOMINAL IN, overall_width: 12.0 MILLIMETERS NOMINAL MM, load_direction: RADIAL, surface_finish: GROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-421-9859, 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
77203-625M1UB3
NSN: 3110-00-421-9859
FSC: 3110
CAGE: 29337 — HOOVER GROUP INC BALL AND ROLLER DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter0.6250 INCHES NOMINAL IN
overall_width12.0 MILLIMETERS NOMINAL MM
load_directionRADIAL
surface_finishGROUND
shield_quantity2
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
lubrication_materialGREASE
overall_outside_diameter40.00 MILLIMETERS NOMINAL MM
internal_fit-up_designationSTANDARD
retainer_fabrication_methodPRESSED
NSN3110-00-421-9859
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 77203-625M1UB3 · 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
KEY FEATURES
•
LOAD DIRECTION: RADIAL
•
BORE SHAPE: STRAIGHT
•
RETAINER FABRICATION METHOD: PRESSED
•
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
SHIELD QUANTITY: 2
•
INTERNAL FIT-UP DESIGNATION: STANDARD
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH12.0 MILLIMETERS NOMINAL MM
LOAD DIRECTIONRADIAL
BORE SHAPESTRAIGHT
RETAINER FABRICATION METHODPRESSED
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
STANDARD TOLERANCE DESIGNATIONABEC NO.1
SHIELD QUANTITY2
INTERNAL FIT-UP DESIGNATIONSTANDARD
SURFACE FINISHGROUND
LUBRICATION MATERIALGREASE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
SEC857GInterchangeable
interchangeable cross-reference
interchangeable
B6259Interchangeable
interchangeable cross-reference
interchangeable
37161Interchangeable
interchangeable cross-reference
interchangeable
1111-518113Interchangeable
interchangeable cross-reference
interchangeable
24C112Interchangeable
interchangeable cross-reference
interchangeable
6-2400Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 77203-625M1UB3?
77203-625M1UB3 is a BEARING,BALL,ANNULAR.
What parts can replace 77203-625M1UB3?
There are 12 known substitutes for 77203-625M1UB3: SEC857G, B6259, 37161 and 9 more. Substitute compatibility should be verified for your specific system.
Is 77203-625M1UB3 still available?
77203-625M1UB3 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