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1228U-593 — CUP,TAPERED ROLLER BEARING

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

1228U-593: CUP,TAPERED ROLLER BEARING.

The CUP,TAPERED ROLLER BEARING is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include body_style: STRAIGHT SHAPE, shell_type: SOLID, overall_width: 1.250 INCHES NOMINAL IN, terminal_type: SOLDER WELL SINGLE MATING END SINGLE CONTACT GROUPING, overall_height: 1.000 INCHES NOMINAL IN, overall_length: 10.000 FEET FT. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-342-0066, 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
1228U-593
NSN: 3110-01-342-0066
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 78500 — MERITOR HEAVY VEHICLE SYSTEMS, LLC (USA)
SPECIFICATIONS
body_styleSTRAIGHT SHAPE
shell_typeSOLID
overall_width1.250 INCHES NOMINAL IN
terminal_typeSOLDER WELL SINGLE MATING END SINGLE CONTACT GROUPING
overall_height1.000 INCHES NOMINAL IN
overall_length10.000 FEET FT
shell_materialALUMINUM ALLOY
insert_materialPLASTIC SINGLE MATING END
special_featuresITEM USES PVC WITHOUT WAIVER FROM AIR FORCE PER MIL-STD-454M
style_designatorINTERNAL CONNECTORS
termination_typeCONNECTOR PLUG BOTH ENDS ALL CONDUCTORS
terminal_locationBACK SINGLE MATING END SINGLE CONTACT GROUPING
NSN3110-01-342-0066
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1228U-593 · 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
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
SUBSTITUTES & CROSS-REFERENCES 1
49906Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1228U-593?
1228U-593 is a CUP,TAPERED ROLLER BEARING.
What parts can replace 1228U-593?
There is 1 known substitute for 1228U-593: 49906. Substitute compatibility should be verified for your specific system.
What is the NSN for 1228U-593?
1228U-593 is cataloged in the U.S. Government catalog under NSN 3110-01-342-0066. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.