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Technical Data Sheet
PartsTable / COMPONENT / A2128
A2128 ✓ 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

SOCKET,PLUG-IN ELECTRONIC COMPON. Key specifications include material: COPPER ALLOY CONTACT, body_style: TOP MOUNT W/METAL SADDLE AND SHIELD BASE, overall_width: 0.797 INCHES NOMINAL IN, alignment_type: RIGID, overall_height: 0.688 INCHES NOMINAL IN, overall_length: 1.094 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-155-9164, 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
A2128
NSN: 3110-00-155-9164
FSC: 3110
CAGE: 70801 — AUTOMOTIVE THRUST BEARING CORP (USA)
SPECIFICATIONS
materialCOPPER ALLOY CONTACT
body_styleTOP MOUNT W/METAL SADDLE AND SHIELD BASE
overall_width0.797 INCHES NOMINAL IN
alignment_typeRIGID
overall_height0.688 INCHES NOMINAL IN
overall_length1.094 INCHES NOMINAL IN
surface_finishGROUND
mounting_methodSADDLE
special_featuresBANDED OD
features_providedCENTER SHIELD
polarization_typeCONTACT SHAPE
surface_treatmentSILVER CONTACT
NSN3110-00-155-9164
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: A2128 · 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 27
PA1104HGInterchangeable
interchangeable cross-reference
interchangeable
1001-042Interchangeable
interchangeable cross-reference
interchangeable
73B10017Interchangeable
interchangeable cross-reference
interchangeable
A28Interchangeable
interchangeable cross-reference
interchangeable
45285Interchangeable
interchangeable cross-reference
interchangeable
B-28Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A2128?
A2128 is a SOCKET,PLUG-IN ELECTRONIC COMPON.
What parts can replace A2128?
There are 27 known substitutes for A2128: PA1104HG, 1001-042, 73B10017 and 24 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A2128?
A2128 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-155-9164. 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