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Technical Data Sheet
PartsTable / COMPONENT / TDCS21-28-54
TDCS21-28-54 ✓ 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 BALL, bore_shape: STRAIGHT, bore_diameter: 1.3122 INCHES MINIMUM AND 1.3128 INCHES MAXIMUM IN, contact_angle: 18.0 DEGREES NOMINAL, load_direction: ANGULAR, surface_finish: GROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-053-4423, 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
TDCS21-28-54
NSN: 3110-00-053-4423
FSC: 3110
CAGE: 78118 — MPB CORPORATION DBA MPB CORP (USA)
SPECIFICATIONS
materialSTEEL BALL
bore_shapeSTRAIGHT
bore_diameter1.3122 INCHES MINIMUM AND 1.3128 INCHES MAXIMUM IN
contact_angle18.0 DEGREES NOMINAL
load_directionANGULAR
surface_finishGROUND
inner_ring_width0.2760 INCHES MINIMUM AND 0.2810 INCHES MAXIMUM IN
outer_ring_width0.2450 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
special_featuresFRACTURED OUTER RING
internal_clearance0.0003 INCHES MINIMUM RADIAL AND 0.0010 INCHES MAXIMUM RADIAL IN
overall_outside_diameter1.7495 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM IN
NSN3110-00-053-4423
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: TDCS21-28-54 · 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: STRAIGHT
•
CONTACT ANGLE: 18.0 DEGREES NOMINAL
•
INTERNAL CLEARANCE: 0.0003 INCHES MINIMUM RADIAL AND 0.0010 INCHES MAXIMUM RADIAL IN
•
MATERIAL: STEEL BALL
TECHNICAL CHARACTERISTICS (FLIS)
BORE SHAPESTRAIGHT
CONTACT ANGLE18.0 DEGREES NOMINAL
INTERNAL CLEARANCE0.0003 INCHES MINIMUM RADIAL AND 0.0010 INCHES MAXIMUM RADIAL IN
MATERIALSTEEL BALL
MATERIALSTEEL COMP E52100 INNER RING
MATERIALSTEEL CORROSION RESISTING RETAINER
SPECIAL FEATURESFRACTURED OUTER RING
MATERIALSTEEL COMP E52100 OUTER RING
OUTER RING WIDTH0.2450 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
SURFACE FINISHGROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
55000Interchangeable
interchangeable cross-reference
interchangeable
13-01511Interchangeable
interchangeable cross-reference
interchangeable
2112093Interchangeable
interchangeable cross-reference
interchangeable
11-3284-2Interchangeable
interchangeable cross-reference
interchangeable
AF8Interchangeable
interchangeable cross-reference
interchangeable
8196870Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is TDCS21-28-54?
TDCS21-28-54 is a BEARING,BALL,ANNULAR.
What parts can replace TDCS21-28-54?
There are 19 known substitutes for TDCS21-28-54: 55000, 13-01511, 2112093 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for TDCS21-28-54?
TDCS21-28-54 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-053-4423. 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