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5203-783 — RETAINER AND BALLS,BEARING

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

5203-783: RETAINER AND BALLS,BEARING.

The RETAINER AND BALLS,BEARING is a the manufacturer industrial component. Key specifications include material: STEEL BALL, bore_diameter: 0.2420 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN, overall_width: 0.4950 INCHES MINIMUM AND 0.5050 INCHES MAXIMUM IN, outside_diameter: 0.3670 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-133-7316, 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
5203-783
NSN: 3110-01-133-7316
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 05869 — RAYTHEON COMPANY DIV RMD STRATEGIC (USA)
SPECIFICATIONS
materialSTEEL BALL
bore_diameter0.2420 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN
overall_width0.4950 INCHES MINIMUM AND 0.5050 INCHES MAXIMUM IN
outside_diameter0.3670 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN
retainer_piece_quantity1
NSN3110-01-133-7316
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 5203-783 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
OUTSIDE DIAMETER: 0.3670 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN
•
BORE DIAMETER: 0.2420 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN
•
MATERIAL: COPPER ALLOY RETAINER
•
RETAINER PIECE QUANTITY: 1
TECHNICAL CHARACTERISTICS
OVERALL WIDTH0.4950 INCHES MINIMUM AND 0.5050 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.3670 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN
BORE DIAMETER0.2420 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY RETAINER
MATERIALSTEEL BALL
RETAINER PIECE QUANTITY1
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES 2
SBB-746Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
801128-001Reference document
Same NSN cross-reference
Reference document — Design control — primary 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 5203-783?
5203-783 is a RETAINER AND BALLS,BEARING.
What parts can replace 5203-783?
There are 2 known substitutes for 5203-783: SBB-746, 801128-001. Substitute compatibility should be verified for your specific system.
What is the NSN for 5203-783?
5203-783 is cataloged in the U.S. Government catalog under NSN 3110-01-133-7316. 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.