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A452 — BEARING,BALL,ANNULAR

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

A452: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include functional_description: USED DURING COMPONENT MAINTENANCE/REPAIR, reference_data_and_literature: T.O. 33D2-6-81-31.

This part is cataloged in the U.S. Government catalog under NSN 3110-00-516-5289, 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
A452
NSN: 3110-00-516-5289
NIINs: 005165289, 006937945
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 1R4E4 — DEVLIEG BULLARD II INC. (USA)
SPECIFICATIONS
functional_descriptionUSED DURING COMPONENT MAINTENANCE/REPAIR
reference_data_and_literatureT.O. 33D2-6-81-31
NSN3110-00-516-5289
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: A452 · 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
SUBSTITUTES & CROSS-REFERENCES 9
416821-66DReference document
Same NSN cross-reference
Reference document — Design control — primary reference
903203Reference document
Same NSN cross-reference
Reference document — Secondary reference
AS1937-6Reference document
Same NSN cross-reference
Reference document — Secondary reference
602054Reference document
Same NSN cross-reference
Reference document — Secondary reference
9044303Reference document
Same NSN cross-reference
Reference document — Secondary reference
18D778Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A452?
A452 is a BEARING,BALL,ANNULAR.
What parts can replace A452?
There are 9 known substitutes for A452: 416821-66D, 903203, AS1937-6 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A452?
A452 is cataloged in the U.S. Government catalog under NSN 3110-00-516-5289. 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.