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Technical Data Sheet
PartsTable / COMPONENT / CS503A0250
CS503A0250 ✓ 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: 0.2450 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 0.5020 INCHES MINIMUM AND 0.5030 INCHES MAXIMUM IN, body_outside_diameter: 0.6260 INCHES MINIMUM AND 0.6270 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 3120-00-855-3814, 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
CS503A0250
NSN: 3120-00-855-3814
FSC: 3120
CAGE: 71129 — BOUND BROOK BEARING CO (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
corner_shapeSQUARE ALL CORNERS
overall_length0.2450 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter0.5020 INCHES MINIMUM AND 0.5030 INCHES MAXIMUM IN
body_outside_diameter0.6260 INCHES MINIMUM AND 0.6270 INCHES MAXIMUM IN
material_document_and_classificationMIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN3120-00-855-3814
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: CS503A0250 · 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 OUTSIDE DIAMETER: 0.6260 INCHES MINIMUM AND 0.6270 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
CORNER SHAPE: SQUARE ALL CORNERS
•
MATERIAL: COPPER ALLOY OVERALL
•
BODY INSIDE DIAMETER: 0.5020 INCHES MINIMUM AND 0.5030 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
BODY OUTSIDE DIAMETER0.6260 INCHES MINIMUM AND 0.6270 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
CORNER SHAPESQUARE ALL CORNERS
MATERIALCOPPER ALLOY OVERALL
BODY INSIDE DIAMETER0.5020 INCHES MINIMUM AND 0.5030 INCHES MAXIMUM IN
MATERIALOIL LUBRICATING LUBRICATION
OVERALL LENGTH0.2450 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
A1232-4Interchangeable
interchangeable cross-reference
interchangeable
AA1232-4Interchangeable
interchangeable cross-reference
interchangeable
50-30-5Interchangeable
interchangeable cross-reference
interchangeable
HF806Interchangeable
interchangeable cross-reference
interchangeable
3120-2Interchangeable
interchangeable cross-reference
interchangeable
F806Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CS503A0250?
CS503A0250 is a BEARING,SLEEVE.
What parts can replace CS503A0250?
There are 20 known substitutes for CS503A0250: A1232-4, AA1232-4, 50-30-5 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CS503A0250?
CS503A0250 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-855-3814. 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