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1228-E-552 — BEARING,BALL,ANNULAR

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

1228-E-552: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include width: 0.281 INCHES NOMINAL IN, height: 0.089 INCHES NOMINAL IN, length: 0.313 INCHES NOMINAL IN, material: STEEL COMP 1095, hole_diameter: 0.120 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN, furnished_items: LOCKNUT. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-321-4791, 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
1228-E-552
NSN: 3110-01-321-4791
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 3D6E9 — MERITOR INDUSTRIAL PRODUCTS, LLC (USA)
SPECIFICATIONS
width0.281 INCHES NOMINAL IN
height0.089 INCHES NOMINAL IN
length0.313 INCHES NOMINAL IN
materialSTEEL COMP 1095
hole_diameter0.120 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
furnished_itemsLOCKNUT
surface_treatmentCADMIUM
material_document_and_classificationASTM A576 ASSN STD SINGLE MATERIAL RESPONSE
surface_treatment_document_and_classificationQQ-P-416,TYPE 1,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE
NSN3110-01-321-4791
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1228-E-552 · 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 1
203302Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1228-E-552?
1228-E-552 is a BEARING,BALL,ANNULAR.
What parts can replace 1228-E-552?
There is 1 known substitute for 1228-E-552: 203302. Substitute compatibility should be verified for your specific system.
What is the NSN for 1228-E-552?
1228-E-552 is cataloged in the U.S. Government catalog under NSN 3110-01-321-4791. This indicates validated use in U.S. government and defense supply chains.
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