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Technical Data Sheet
PartsTable / COMPONENT / OB24
OB24 ✓ 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: OIL LUBRICATING LUBRICATION, corner_shape: SQUARE ALL CORNERS, overall_length: 0.1532 INCHES MINIMUM AND 0.1562 INCHES MAXIMUM IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 0.1873 INCHES MINIMUM AND 0.1877 INCHES MAXIMUM IN, body_outside_diameter: 0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-135-4203, 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
OB24
NSN: 3120-01-135-4203
FSC: 3120
CAGE: 23266 — SECS INC (USA)
SPECIFICATIONS
materialOIL LUBRICATING LUBRICATION
corner_shapeSQUARE ALL CORNERS
overall_length0.1532 INCHES MINIMUM AND 0.1562 INCHES MAXIMUM IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter0.1873 INCHES MINIMUM AND 0.1877 INCHES MAXIMUM IN
body_outside_diameter0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
material_document_and_classificationMIL-B-5687, TY 1 COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN3120-01-135-4203
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: OB24 · 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 ALL CORNERS
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-5687, TY 1 COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: COPPER ALLOY 841 OVERALL
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
BODY OUTSIDE DIAMETER: 0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
•
BODY INSIDE DIAMETER: 0.1873 INCHES MINIMUM AND 0.1877 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CORNER SHAPESQUARE ALL CORNERS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-5687, TY 1 COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY 841 OVERALL
MATERIALOIL LUBRICATING LUBRICATION
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
BODY OUTSIDE DIAMETER0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
OVERALL LENGTH0.1532 INCHES MINIMUM AND 0.1562 INCHES MAXIMUM IN
BODY INSIDE DIAMETER0.1873 INCHES MINIMUM AND 0.1877 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
94-433-13Interchangeable
interchangeable cross-reference
interchangeable
AM2Interchangeable
interchangeable cross-reference
interchangeable
94-440-1Interchangeable
interchangeable cross-reference
interchangeable
4000J9PC134Interchangeable
interchangeable cross-reference
interchangeable
50129PC134Interchangeable
interchangeable cross-reference
interchangeable
1220K11PC123Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is OB24?
OB24 is a BEARING,SLEEVE.
What parts can replace OB24?
There are 20 known substitutes for OB24: 94-433-13, AM2, 94-440-1 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for OB24?
OB24 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-135-4203. 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