PartsTable
Technical Data Sheet
PartsTable / COMPONENT / Y744-9
Y744-9 ✓ 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: COPPER ALLOY OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 1.8600 INCHES MINIMUM AND 1.8750 INCHES MAXIMUM IN, surface_finish: 16.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 2.7600 INCHES MINIMUM AND 2.7620 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-661-9331, 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
Y744-9
NSN: 3120-00-661-9331
FSC: 3120
CAGE: 45320 — PACCAR GOVERNMENT GROUP CO YARROW BAY OFFICE PK (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
corner_shapeSQUARE ALL CORNERS
overall_length1.8600 INCHES MINIMUM AND 1.8750 INCHES MAXIMUM IN
surface_finish16.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter2.7600 INCHES MINIMUM AND 2.7620 INCHES MAXIMUM IN
body_outside_diameter3.2480 INCHES MINIMUM AND 3.2500 INCHES MAXIMUM IN
material_document_and_classificationMIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN3120-00-661-9331
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: Y744-9 · 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
•
BODY INSIDE DIAMETER: 2.7600 INCHES MINIMUM AND 2.7620 INCHES MAXIMUM IN
•
MATERIAL: OIL LUBRICATING LUBRICATION
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-L-11734 MIL SPEC SINGLE MATERIAL RESPONSE AND MIL-L-6085 MIL SPEC SINGLE MATERIAL RESPONSE AND MIL-L-15016, SYMBOL 2190 MIL SPEC SINGLE MATERIAL RESPONSE LUBRICATION
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
SURFACE FINISH: 16.0 MICROINCHES RIGHT END SURFACE OF BODY
•
CORNER SHAPE: SQUARE ALL CORNERS
TECHNICAL CHARACTERISTICS (FLIS)
BODY INSIDE DIAMETER2.7600 INCHES MINIMUM AND 2.7620 INCHES MAXIMUM IN
MATERIALOIL LUBRICATING LUBRICATION
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-L-11734 MIL SPEC SINGLE MATERIAL RESPONSE AND MIL-L-6085 MIL SPEC SINGLE MATERIAL RESPONSE AND MIL-L-15016, SYMBOL 2190 MIL SPEC SINGLE MATERIAL RESPONSE LUBRICATION
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
SURFACE FINISH16.0 MICROINCHES RIGHT END SURFACE OF BODY
MATERIALCOPPER ALLOY OVERALL
CORNER SHAPESQUARE ALL CORNERS
BODY OUTSIDE DIAMETER3.2480 INCHES MINIMUM AND 3.2500 INCHES MAXIMUM IN
SURFACE FINISH16.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
30-801Interchangeable
interchangeable cross-reference
interchangeable
150-595PC801Interchangeable
interchangeable cross-reference
interchangeable
150-595Interchangeable
interchangeable cross-reference
interchangeable
29780DInterchangeable
interchangeable cross-reference
interchangeable
F1995Interchangeable
interchangeable cross-reference
interchangeable
50801Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is Y744-9?
Y744-9 is a BEARING,SLEEVE.
What parts can replace Y744-9?
There are 19 known substitutes for Y744-9: 30-801, 150-595PC801, 150-595 and 16 more. Substitute compatibility should be verified for your specific system.
Is Y744-9 still available?
Y744-9 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026