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503-0140-125 — BEARING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

503-0140-125: BEARING,SLEEVE.

The BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE AND PLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER) INNER LAYER, flange_width: 0.1850 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM IN, overall_length: 4.0850 INCHES MINIMUM AND 4.1100 INCHES MAXIMUM IN, body_inside_diameter: 2.5030 INCHES MINIMUM AND 2.5040 INCHES MAXIMUM IN, body_outside_diameter: 3.0030 INCHES MINIMUM AND 3.0040 INCHES MAXIMUM IN, flange_outside_diameter: 4.0000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-263-8293, 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
503-0140-125
NSN: 3120-01-263-8293
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 77896 — REXNORD INDUSTRIES, LLC DIV AEROSSPACE BEARING OPERATION (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE AND PLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER) INNER LAYER
flange_width0.1850 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM IN
overall_length4.0850 INCHES MINIMUM AND 4.1100 INCHES MAXIMUM IN
body_inside_diameter2.5030 INCHES MINIMUM AND 2.5040 INCHES MAXIMUM IN
body_outside_diameter3.0030 INCHES MINIMUM AND 3.0040 INCHES MAXIMUM IN
flange_outside_diameter4.0000 INCHES NOMINAL IN
NSN3120-01-263-8293
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 503-0140-125 · 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
•
FLANGE OUTSIDE DIAMETER: 4.0000 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 3.0030 INCHES MINIMUM AND 3.0040 INCHES MAXIMUM IN
•
BODY INSIDE DIAMETER: 2.5030 INCHES MINIMUM AND 2.5040 INCHES MAXIMUM IN
•
FLANGE WIDTH: 0.1850 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM IN
•
MATERIAL: GLASS FIBER AND PLASTIC EPOXY OUTER LAYER
TECHNICAL CHARACTERISTICS
FLANGE OUTSIDE DIAMETER4.0000 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER3.0030 INCHES MINIMUM AND 3.0040 INCHES MAXIMUM IN
OVERALL LENGTH4.0850 INCHES MINIMUM AND 4.1100 INCHES MAXIMUM IN
BODY INSIDE DIAMETER2.5030 INCHES MINIMUM AND 2.5040 INCHES MAXIMUM IN
FLANGE WIDTH0.1850 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM IN
MATERIALGLASS FIBER AND PLASTIC EPOXY OUTER LAYER
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE AND PLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER) INNER LAYER
OTHER ITEMS IN FSC 3120 — Bearings, Plain, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3120-00-001-1288 3120-00-001-1835 3120-00-001-1838 3120-00-001-1928 3120-00-001-1934 3120-00-001-3933 3120-00-001-3937 3120-00-001-3938
SUBSTITUTES & CROSS-REFERENCES 1
JCM-11355-007Reference document
Same NSN cross-reference
Reference document — Vendor item drawing 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 503-0140-125?
503-0140-125 is a BEARING,SLEEVE.
What parts can replace 503-0140-125?
There is 1 known substitute for 503-0140-125: JCM-11355-007. Substitute compatibility should be verified for your specific system.
What is the NSN for 503-0140-125?
503-0140-125 is cataloged in the U.S. Government catalog under NSN 3120-01-263-8293. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.