PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 728300
728300 ✓ 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 CONNECTOR,PLUG,ELECTRICAL is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_shape: NONSTANDARD TAPER, bore_diameter: 2.1679 INCHES MINIMUM AND 2.1687 INCHES MAXIMUM IN, overall_width: 1.1200 INCHES MINIMUM AND 1.1250 INCHES MAXIMUM IN, surface_finish: GROUND, style_designator: SOLID INNER RACE, WITH BORE CHAMFER, JOURNAL AND NEEDLE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-975-2132, 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
728300
NSN: 3110-00-975-2132
FSC: 3110
CAGE: 35311 — AMERICAN STANDARD INC WESTINGHOUSE AIR BRAKE CO DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeNONSTANDARD TAPER
bore_diameter2.1679 INCHES MINIMUM AND 2.1687 INCHES MAXIMUM IN
overall_width1.1200 INCHES MINIMUM AND 1.1250 INCHES MAXIMUM IN
surface_finishGROUND
style_designatorSOLID INNER RACE, WITH BORE CHAMFER, JOURNAL AND NEEDLE
overall_outside_diameter2.4994 INCHES MINIMUM AND 2.5000 INCHES MAXIMUM IN
NSN3110-00-975-2132
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 728300 · 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
•
BORE SHAPE: NONSTANDARD TAPER
•
OVERALL OUTSIDE DIAMETER: 2.4994 INCHES MINIMUM AND 2.5000 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SOLID INNER RACE, WITH BORE CHAMFER, JOURNAL AND NEEDLE
•
MATERIAL: STEEL OVERALL
•
SURFACE FINISH: GROUND
•
BORE DIAMETER: 2.1679 INCHES MINIMUM AND 2.1687 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
BORE SHAPENONSTANDARD TAPER
OVERALL OUTSIDE DIAMETER2.4994 INCHES MINIMUM AND 2.5000 INCHES MAXIMUM IN
SPECIAL FEATURESTWO @1/4 IN. DIA HOLES 180 DEG APART 0.562 IN. FROM END,ROCKWELL HARDNESS RATING 60 TO 64,FINSH CASE HARDEN 0.025 IN. TO 0.045 IN. MAX TAPER,ID 0.0005 IN.,OD 0.0004 IN.,WALL 0.0006 IN. INSIDE CORNERS CHAMFERED IN
STYLE DESIGNATORSOLID INNER RACE, WITH BORE CHAMFER, JOURNAL AND NEEDLE
MATERIALSTEEL OVERALL
SURFACE FINISHGROUND
BORE DIAMETER2.1679 INCHES MINIMUM AND 2.1687 INCHES MAXIMUM IN
OVERALL WIDTH1.1200 INCHES MINIMUM AND 1.1250 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
632Interchangeable
interchangeable cross-reference
interchangeable
1235962Interchangeable
interchangeable cross-reference
interchangeable
30091Interchangeable
interchangeable cross-reference
interchangeable
7368760Interchangeable
interchangeable cross-reference
interchangeable
2A7749Interchangeable
interchangeable cross-reference
interchangeable
120439Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 728300?
728300 is a CONNECTOR,PLUG,ELECTRICAL.
What parts can replace 728300?
There are 18 known substitutes for 728300: 632, 1235962, 30091 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 728300?
728300 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-975-2132. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026