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Technical Data Sheet
PartsTable / COMPONENT / 424751
424751 ✓ 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 width: 0.338 INCHES NOMINAL IN, diameter: 3.420 INCHES NOMINAL IN, material: GLASS OPTICAL, abbe_constant: 27.600, axial_thickness: 0.125 INCHES NOMINAL IN, refraction_index: 1.7550 NOMINAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-554-3466, 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
424751
NSN: 3110-00-554-3466
FSC: 3110
CAGE: 35311 — AMERICAN STANDARD INC WESTINGHOUSE AIR BRAKE CO DIV (USA)
SPECIFICATIONS
width0.338 INCHES NOMINAL IN
diameter3.420 INCHES NOMINAL IN
materialGLASS OPTICAL
abbe_constant27.600
axial_thickness0.125 INCHES NOMINAL IN
refraction_index1.7550 NOMINAL
special_featuresLEFT SIDE BEVELED TO 3.1 IN. DIA OVER 0.238 IN.; EDGES BLACKENED WITH LACQUER; MAGNESIUM FLOURIDE COATING IN
single_lens_styleDOUBLE CONCAVE
material_document_and_classificationMIL-G-174, CLASS 1, GRADE B MIL SPEC SINGLE MATERIAL RESPONSE
NSN3110-00-554-3466
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 424751 · 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
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
RETAINER FABRICATION METHOD: PRESSED
•
OVERALL OUTSIDE DIAMETER: 120.00 MILLIMETERS NOMINAL MM
•
LOAD DIRECTION: RADIAL
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH29.0 MILLIMETERS NOMINAL MM
MATERIALSTEEL OVERALL
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
INTERNAL FIT-UP DESIGNATIONSTANDARD
STANDARD TOLERANCE DESIGNATIONABEC NO.1
RETAINER FABRICATION METHODPRESSED
OVERALL OUTSIDE DIAMETER120.00 MILLIMETERS NOMINAL MM
LOAD DIRECTIONRADIAL
SURFACE FINISHGROUND
BORE SHAPESTRAIGHT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 32
7409Interchangeable
interchangeable cross-reference
interchangeable
12Z315-100Interchangeable
interchangeable cross-reference
interchangeable
907722P19Interchangeable
interchangeable cross-reference
interchangeable
72-6970-315Interchangeable
interchangeable cross-reference
interchangeable
72-6970-322Interchangeable
interchangeable cross-reference
interchangeable
271963Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 424751?
424751 is a BEARING,BALL,ANNULAR.
What parts can replace 424751?
There are 32 known substitutes for 424751: 7409, 12Z315-100, 907722P19 and 29 more. Substitute compatibility should be verified for your specific system.
Is 424751 still available?
424751 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