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PartsTable / COMPONENT / A-A-51154
A-A-51154 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

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 shape: STRAIGHT, length: 2.000 INCHES NOMINAL IN, diameter: 0.250 INCHES NOMINAL IN, material: TUNGSTEN CARBIDE, mounting_shank: INCLUDED, overall_diameter: 0.438 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3455-00-021-2409, 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
A-A-51154
NSN: 3455-00-021-2409
FSC: 3455
CAGE: 58536 — FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
shapeSTRAIGHT
length2.000 INCHES NOMINAL IN
diameter0.250 INCHES NOMINAL IN
materialTUNGSTEN CARBIDE
mounting_shankINCLUDED
overall_diameter0.438 INCHES NOMINAL IN
special_featuresRIGHT HAND SPRIRAL FLUTING
style_designatorBALL SHAPE
features_providedCHIPBREAKER
removability_featureNOT INCLUDED
shank_overall_length2.438 INCHES NOMINAL IN
cutter_tooth_cut_styleMEDIUM
NSN3455-00-021-2409
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CUP,TAPERED ROLLER BEARING TITLE COMPONENT PN A-A-51154 MFR CUP,TAPERED ROLLER BEA
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
GGG-D-751 TYBCL1Interchangeable
interchangeable cross-reference
interchangeable
L10Interchangeable
interchangeable cross-reference
interchangeable
1330LInterchangeable
interchangeable cross-reference
interchangeable
5261-5Interchangeable
interchangeable cross-reference
interchangeable
5-32GR100STN440Interchangeable
interchangeable cross-reference
interchangeable
AN216C1-10Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A-A-51154?
A-A-51154 is a CUP,TAPERED ROLLER BEARING.
What parts can replace A-A-51154?
There are 21 known substitutes for A-A-51154: GGG-D-751 TYBCL1, L10, 1330L and 18 more. Substitute compatibility should be verified for your specific system.
Is A-A-51154 still available?
A-A-51154 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