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Technical Data Sheet
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N21052PC12 — BUSHING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

N21052PC12: BUSHING,SLEEVE.

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include corner_shape: SQUARE ALL CORNERS, overall_length: 1.0000 INCHES NOMINAL IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_outside_diameter: 1.9400 INCHES NOMINAL IN, lubricant_accommodation_style: GROOVED CIRCULAR, surface_groove_location_and_quantity: 1 INTERNAL. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-343-2398, 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
N21052PC12
NSN: 3120-00-343-2398
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 72915 — GENERAL MOTORS CORP ELECTRO-MOTIVE DIV (USA)
SPECIFICATIONS
corner_shapeSQUARE ALL CORNERS
overall_length1.0000 INCHES NOMINAL IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_outside_diameter1.9400 INCHES NOMINAL IN
lubricant_accommodation_styleGROOVED CIRCULAR
surface_groove_location_and_quantity1 INTERNAL
antirotation/lubrication_type_and_quantity2 HOLE
NSN3120-00-343-2398
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: N21052PC12 · 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: SQUARE ALL CORNERS
•
BODY OUTSIDE DIAMETER: 1.9400 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
LUBRICANT ACCOMMODATION STYLE: GROOVED CIRCULAR
•
ANTIROTATION/LUBRICATION TYPE AND QUANTITY: 2 HOLE
•
SURFACE GROOVE LOCATION AND QUANTITY: 1 INTERNAL
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
BODY OUTSIDE DIAMETER1.9400 INCHES NOMINAL IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
OVERALL LENGTH1.0000 INCHES NOMINAL IN
LUBRICANT ACCOMMODATION STYLEGROOVED CIRCULAR
ANTIROTATION/LUBRICATION TYPE AND QUANTITY2 HOLE
SURFACE GROOVE LOCATION AND QUANTITY1 INTERNAL
SUBSTITUTES & CROSS-REFERENCES 9
CL51S61-0843PC32Reference document
Same NSN cross-reference
Reference document — Secondary reference
N4780PC32Reference document
Same NSN cross-reference
Reference document — Secondary reference
NX14290PC32Reference document
Same NSN cross-reference
Reference document — Secondary reference
3102383Reference document
Same NSN cross-reference
Reference document — Secondary reference
N9780PC32Reference document
Same NSN cross-reference
Reference document — Secondary reference
81125S41-21052ALT7PC5Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is N21052PC12?
N21052PC12 is a BUSHING,SLEEVE.
What parts can replace N21052PC12?
There are 9 known substitutes for N21052PC12: CL51S61-0843PC32, N4780PC32, NX14290PC32 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for N21052PC12?
N21052PC12 is cataloged in the U.S. Government catalog under NSN 3120-00-343-2398. 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.