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Technical Data Sheet
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63526 — BUSHING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

63526: BUSHING,SLEEVE.

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include end_item_identification: MRTT, part_name_assigned_by_controlling_agency: NUT. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-516-0654, 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
63526
NSN: 3120-00-516-0654
NIINs: 005160654, 013448199, 014402356, 016648407
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 830Q4 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DBA CURTISS-WRIGHT STEAM AND AIR SOLUTIONS DIV STEAM AND AIR SOLUTIONS (USA)
SPECIFICATIONS
end_item_identificationMRTT
part_name_assigned_by_controlling_agencyNUT
NSN3120-00-516-0654
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 63526 · 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
•
CORNER SHAPE: RELIEF GROOVE LEFT FLANGE BODY CORNER
•
FLANGE OUTSIDE DIAMETER: 1.3650 INCHES MINIMUM AND 1.3750 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 1.1255 INCHES MINIMUM AND 1.1270 INCHES MAXIMUM IN
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HARDNESS RATING: 41.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL
•
STYLE DESIGNATOR: SOLID, EXTERNAL FLANGE ONE END
TECHNICAL CHARACTERISTICS
CORNER SHAPERELIEF GROOVE LEFT FLANGE BODY CORNER
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
CORNER SHAPECHAMFERED OUTSIDE LEFT CORNER
FLANGE OUTSIDE DIAMETER1.3650 INCHES MINIMUM AND 1.3750 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER1.1255 INCHES MINIMUM AND 1.1270 INCHES MAXIMUM IN
HARDNESS RATING41.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATORSOLID, EXTERNAL FLANGE ONE END
OVERALL LENGTH0.5000 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.7495 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 1
CS516-0654Reference 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 63526?
63526 is a BUSHING,SLEEVE.
What parts can replace 63526?
There is 1 known substitute for 63526: CS516-0654. Substitute compatibility should be verified for your specific system.
What is the NSN for 63526?
63526 is cataloged in the U.S. Government catalog under NSN 3120-00-516-0654. 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.