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Technical Data Sheet
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YTS581 ✓ Verified by PartsTable
— · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

The BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE INNER LAYER, corner_shape: SQUARE OUTSIDE RIGHT CORNER, overall_length: 0.5000 INCHES MINIMUM AND 0.5100 INCHES MAXIMUM IN, surface_finish: 63.0 MICROINCHES OVERALL, style_designator: SPLIT, PLAIN, NO OUTSIDE FLANGES, surface_treatment: ANODIZE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-179-7325, 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
YTS581
NSN: 3120-00-179-7325
FSC: 3120
CAGE: 77896 — REXNORD INDUSTRIES, LLC DIV AEROSSPACE BEARING OPERATION (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE INNER LAYER
corner_shapeSQUARE OUTSIDE RIGHT CORNER
overall_length0.5000 INCHES MINIMUM AND 0.5100 INCHES MAXIMUM IN
surface_finish63.0 MICROINCHES OVERALL
style_designatorSPLIT, PLAIN, NO OUTSIDE FLANGES
surface_treatmentANODIZE OVERALL
body_inside_diameter2.6770 INCHES MINIMUM AND 2.6970 INCHES MAXIMUM IN
body_outside_diameter2.8600 INCHES MINIMUM AND 2.8840 INCHES MAXIMUM IN
material_document_and_classificationAMS4120 ASSN STD 1ST MATERIAL RESPONSE AND AMS4121 ASSN STD 2ND MATERIAL RESPONSE AND AMS4122 ASSN STD 3RD MATERIAL RESPONSE OUTER LAYER
surface_treatment_document_and_classificationMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN3120-00-179-7325
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: YTS581 · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CORNER SHAPE: SQUARE OUTSIDE LEFT CORNER
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE INNER LAYER
•
BODY OUTSIDE DIAMETER: 2.8600 INCHES MINIMUM AND 2.8840 INCHES MAXIMUM IN
•
BODY INSIDE DIAMETER: 2.6770 INCHES MINIMUM AND 2.6970 INCHES MAXIMUM IN
•
SURFACE FINISH: 63.0 MICROINCHES OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS4120 ASSN STD 1ST MATERIAL RESPONSE AND AMS4121 ASSN STD 2ND MATERIAL RESPONSE AND AMS4122 ASSN STD 3RD MATERIAL RESPONSE OUTER LAYER
TECHNICAL CHARACTERISTICS (FLIS)
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE INNER LAYER
OVERALL LENGTH0.5000 INCHES MINIMUM AND 0.5100 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER2.8600 INCHES MINIMUM AND 2.8840 INCHES MAXIMUM IN
BODY INSIDE DIAMETER2.6770 INCHES MINIMUM AND 2.6970 INCHES MAXIMUM IN
SURFACE FINISH63.0 MICROINCHES OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS4120 ASSN STD 1ST MATERIAL RESPONSE AND AMS4121 ASSN STD 2ND MATERIAL RESPONSE AND AMS4122 ASSN STD 3RD MATERIAL RESPONSE OUTER LAYER
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
SURFACE TREATMENTANODIZE OVERALL
CORNER SHAPECHAMFERED INSIDE LEFT CORNER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
90886Interchangeable
interchangeable cross-reference
interchangeable
1801973-1Interchangeable
interchangeable cross-reference
interchangeable
TDRB700Interchangeable
interchangeable cross-reference
interchangeable
NH43-201AInterchangeable
Same NIIN cross-reference
interchangeable
206-010-459-001Interchangeable
Same NIIN cross-reference
interchangeable
BJ86TF89-16E9250Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is YTS581?
YTS581 is a BEARING,SLEEVE.
What parts can replace YTS581?
There are 6 known substitutes for YTS581: 90886, 1801973-1, TDRB700 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for YTS581?
YTS581 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-179-7325. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026