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578R953H03 — BEARING,BALL,DUPLEX

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

578R953H03: BEARING,BALL,DUPLEX.

The BEARING,BALL,DUPLEX is a the manufacturer industrial component. Key specifications include material: GREASE LUBRICATION, bore_diameter: 0.4998 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN, overall_width: 0.3020 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN, load_direction: ANGULAR, surface_finish: GROUND, style_designator: COUNTERBORED OUTER RINGS, NON-SEPARABLE, FACE TO FACE MOUNTING. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-080-8533, 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
578R953H03
NSN: 3110-01-080-8533
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 83086 — NEW HAMPSHIRE BALL BEARINGS INC DIV HITECH DIVISION (USA)
SPECIFICATIONS
materialGREASE LUBRICATION
bore_diameter0.4998 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
overall_width0.3020 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN
load_directionANGULAR
surface_finishGROUND
special_featuresSHIELDS SHALL BE MADE OF 400 SERIES CORROSION RESISTING STEEL BONDED TO NITRILE RUBBER AND SPACERS SHALL BE OF TUBULAR CONSTRUCTION
style_designatorCOUNTERBORED OUTER RINGS, NON-SEPARABLE, FACE TO FACE MOUNTING
features_providedALIGNING RING
end_item_identificationF-16A-B USAF A
overall_outside_diameter0.7428 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
material_document_and_classificationUNABLE TO DECODE
lubrication_material_document_and_classificationDOD-G-24508 MIL SPEC SINGLE MATERIAL RESPONSE
NSN3110-01-080-8533
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 578R953H03 · 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
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: COUNTERBORED OUTER RINGS, NON-SEPARABLE, FACE TO FACE MOUNTING
•
MATERIAL DOCUMENT AND CLASSIFICATION: UNABLE TO DECODE
•
OVERALL OUTSIDE DIAMETER: 0.7428 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
•
FEATURES PROVIDED: ALIGNING RING
•
LOAD DIRECTION: ANGULAR
TECHNICAL CHARACTERISTICS
SURFACE FINISHGROUND
STYLE DESIGNATORCOUNTERBORED OUTER RINGS, NON-SEPARABLE, FACE TO FACE MOUNTING
MATERIAL DOCUMENT AND CLASSIFICATIONUNABLE TO DECODE
OVERALL WIDTH0.3020 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER0.7428 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
FEATURES PROVIDEDALIGNING RING
LOAD DIRECTIONANGULAR
SPECIAL FEATURESSHIELDS SHALL BE MADE OF 400 SERIES CORROSION RESISTING STEEL BONDED TO NITRILE RUBBER AND SPACERS SHALL BE OF TUBULAR CONSTRUCTION
END ITEM IDENTIFICATIONF-16A-B USAF A
BORE DIAMETER0.4998 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES 2
SR824PT8C21K38-2Reference document
Same NSN cross-reference
Reference document — Secondary reference
3TKL008-12-114Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 578R953H03?
578R953H03 is a BEARING,BALL,DUPLEX.
What parts can replace 578R953H03?
There are 2 known substitutes for 578R953H03: SR824PT8C21K38-2, 3TKL008-12-114. Substitute compatibility should be verified for your specific system.
What is the NSN for 578R953H03?
578R953H03 is cataloged in the U.S. Government catalog under NSN 3110-01-080-8533. 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.