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635A535 — BUSHING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

635A535: BUSHING,SLEEVE.

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, corner_shape: SQUARE ALL CORNERS, flange_width: 0.5000 INCHES NOMINAL IN, hole_diameter: 0.5625 INCHES NOMINAL FIRST IN, overall_length: 2.5000 INCHES NOMINAL IN, surface_finish: 63.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-178-2139, 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
635A535
NSN: 3120-01-178-2139
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 01289 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
corner_shapeSQUARE ALL CORNERS
flange_width0.5000 INCHES NOMINAL IN
hole_diameter0.5625 INCHES NOMINAL FIRST IN
overall_length2.5000 INCHES NOMINAL IN
surface_finish63.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE
special_featuresOUTSIDE RIGHT CORNER RELIEVED,1.1250 IN. DIA,0.4375 IN. W IN
style_designatorSOLID, EXTERNAL FLANGE ONE END
body_inside_diameter0.4990 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
body_outside_diameter1.3730 INCHES MINIMUM AND 1.3740 INCHES MAXIMUM IN
flange_outside_diameter3.5000 INCHES NOMINAL IN
material_document_and_classificationB50R57D,FSCM 01289 MFR REF SINGLE MATERIAL RESPONSE OVERALL
NSN3120-01-178-2139
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 635A535 · 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
•
SURFACE FINISH: 63.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE
•
CORNER SHAPE: SQUARE ALL CORNERS
•
FLANGE OUTSIDE DIAMETER: 3.5000 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 1.3730 INCHES MINIMUM AND 1.3740 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SOLID, EXTERNAL FLANGE ONE END
•
MATERIAL DOCUMENT AND CLASSIFICATION: B50R57D,FSCM 01289 MFR REF SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE
SURFACE FINISH32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
CORNER SHAPESQUARE ALL CORNERS
FLANGE OUTSIDE DIAMETER3.5000 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER1.3730 INCHES MINIMUM AND 1.3740 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, EXTERNAL FLANGE ONE END
MATERIAL DOCUMENT AND CLASSIFICATIONB50R57D,FSCM 01289 MFR REF SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH2.5000 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.4990 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
SPECIAL FEATURESOUTSIDE RIGHT CORNER RELIEVED,1.1250 IN. DIA,0.4375 IN. W IN
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 3
7303E71 PIECE 215Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
635A535-002Reference document
Same NSN cross-reference
Reference document — Secondary reference
A-3225116Reference document
Same NSN cross-reference
Reference document — Secondary 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 635A535?
635A535 is a BUSHING,SLEEVE.
What parts can replace 635A535?
There are 3 known substitutes for 635A535: 7303E71 PIECE 215, 635A535-002, A-3225116. Substitute compatibility should be verified for your specific system.
What is the NSN for 635A535?
635A535 is cataloged in the U.S. Government catalog under NSN 3120-01-178-2139. 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.