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550751 — BEARING,BALL,ANNULAR

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

550751: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include diameter: 1.990 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN, material: ALUMINUM ALLOY, thickness: 0.064 INCHES NOMINAL IN, attachment_method: HOLE, surface_treatment: OXIDE FILM, marking_designation: LEGEND LOCATION NOT OTHERWISE SPECIFIED. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-059-4748, 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
550751
NSN: 3110-00-059-4748
NIINs: 000594748, 007976093
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 72447 — DANA COMMERCIAL VEHICLE MANUFACTURING, LLC DBA DANA COMMERCIAL VEHICLE PRODUCTS (USA)
SPECIFICATIONS
diameter1.990 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN
materialALUMINUM ALLOY
thickness0.064 INCHES NOMINAL IN
attachment_methodHOLE
surface_treatmentOXIDE FILM
marking_designationLEGEND LOCATION NOT OTHERWISE SPECIFIED
material_document_and_classificationQQ-A-250/5, ALLOY ALCLAD 2024 FED SPEC SINGLE MATERIAL RESPONSE
surface_treatment_document_and_classificationMIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE
NSN3110-00-059-4748
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 550751 · 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
•
BEARING SEAL TYPE: CONTACT
•
LUBRICATION MATERIAL: GREASE
•
OUTER RING WIDTH: 21.00 MILLIMETERS NOMINAL MM
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 85.00 MILLIMETERS NOMINAL MM
•
BORE SHAPE: STRAIGHT
TECHNICAL CHARACTERISTICS
BEARING SEAL TYPECONTACT
LUBRICATION MATERIALGREASE
OUTER RING WIDTH21.00 MILLIMETERS NOMINAL MM
INTERNAL FIT-UP DESIGNATIONSTANDARD
SURFACE FINISHGROUND
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
OVERALL OUTSIDE DIAMETER85.00 MILLIMETERS NOMINAL MM
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
SEAL QUANTITY2
SUBSTITUTES & CROSS-REFERENCES 1
550364-4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 550751?
550751 is a BEARING,BALL,ANNULAR.
What parts can replace 550751?
There is 1 known substitute for 550751: 550364-4. Substitute compatibility should be verified for your specific system.
What is the NSN for 550751?
550751 is cataloged in the U.S. Government catalog under NSN 3110-00-059-4748. 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.