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597385.MIL — BEARING,ROLLER,CYLINDRICAL

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

597385.MIL: BEARING,ROLLER,CYLINDRICAL.

The BEARING,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4340 CAGE, bore_diameter: 2.5588 INCHES MINIMUM AND 2.5591 INCHES MAXIMUM IN, outer_ring_width: 1.0575 INCHES MINIMUM AND 1.0625 INCHES MAXIMUM IN, style_designator: CYLINDRICAL INNER RING, CYLINDRICAL OUTER RING, SEPARABLE, overall_outside_diameter: 4.1837 INCHES MINIMUM AND 4.1840 INCHES MAXIMUM IN, criticality_code_justification: ABXV. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-399-3938, 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
597385.MIL
NSN: 3110-01-399-3938
NIINs: 013993938, 016274158
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL COMP 4340 CAGE
bore_diameter2.5588 INCHES MINIMUM AND 2.5591 INCHES MAXIMUM IN
outer_ring_width1.0575 INCHES MINIMUM AND 1.0625 INCHES MAXIMUM IN
style_designatorCYLINDRICAL INNER RING, CYLINDRICAL OUTER RING, SEPARABLE
overall_outside_diameter4.1837 INCHES MINIMUM AND 4.1840 INCHES MAXIMUM IN
criticality_code_justificationABXV
NSN3110-01-399-3938
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 597385.MIL · 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
•
OUTER RING WIDTH: 1.0575 INCHES MINIMUM AND 1.0625 INCHES MAXIMUM IN
•
CRITICALITY CODE JUSTIFICATION: ABXV
•
STYLE DESIGNATOR: CYLINDRICAL INNER RING, CYLINDRICAL OUTER RING, SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 4.1837 INCHES MINIMUM AND 4.1840 INCHES MAXIMUM IN
•
BORE DIAMETER: 2.5588 INCHES MINIMUM AND 2.5591 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP M50 OUTER RING
TECHNICAL CHARACTERISTICS
OUTER RING WIDTH1.0575 INCHES MINIMUM AND 1.0625 INCHES MAXIMUM IN
CRITICALITY CODE JUSTIFICATIONABXV
STYLE DESIGNATORCYLINDRICAL INNER RING, CYLINDRICAL OUTER RING, SEPARABLE
OVERALL OUTSIDE DIAMETER4.1837 INCHES MINIMUM AND 4.1840 INCHES MAXIMUM IN
BORE DIAMETER2.5588 INCHES MINIMUM AND 2.5591 INCHES MAXIMUM IN
MATERIALSTEEL COMP M50 OUTER RING
MATERIALSTEEL COMP M50 INNER RING
MATERIALSTEEL COMP 4340 CAGE
MATERIALSTEEL COMP M50 EXPOSED SURFACES OF STUD AND WASHER AS MOUNTED
SUBSTITUTES & CROSS-REFERENCES 3
597385ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
23058593Reference document
Same NSN cross-reference
Reference document — Secondary reference
R213C82Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 597385.MIL?
597385.MIL is a BEARING,ROLLER,CYLINDRICAL.
What parts can replace 597385.MIL?
There are 3 known substitutes for 597385.MIL: 597385A, 23058593, R213C82. Substitute compatibility should be verified for your specific system.
What is the NSN for 597385.MIL?
597385.MIL is cataloged in the U.S. Government catalog under NSN 3110-01-399-3938. 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.