PartsTable
Technical Data Sheet
Download PDF

18789 — BEARING,SLEEVE

✓ Government record, cited
Clementoni · BALL BEARING
PRODUCT OVERVIEW

18789: BEARING,SLEEVE.

2.1 speaker set including wooden subwoofer with a total RMS power output of 60 Watt (120 Watt peak power). High quality sound with deep bass. Convenient wired volume control with headphones and iPod/mp3 connections.

With volume and bass control at the side. Smart power management: goes to stand-by when not in use. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-428-7543, 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
18789
NSN: 3120-00-428-7543
NIINs: 004287543, 004351708, 014986134, 015884420
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 96046 — CRANE PUMPS & SYSTEMS PFT CORP DIV CRANE PUMPS & SYSTEM PFT CORP. (USA)
SPECIFICATIONS
special_featuresHYDROGEL, CARRASYN; NON-OILY; 8 OZ SPRAY BOTTLE; PACKAGE OF 6 OZ
part_name_assigned_by_controlling_agencyHYDROGEL CARRASYN 8OZ SPRAY BOTTLE 6S OZ
NSN3120-00-428-7543
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 18789 · Clementoni ⚠ 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: 0.7510 INCHES MINIMUM AND 0.7520 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
BODY INSIDE DIAMETER: 0.5144 INCHES MINIMUM AND 0.5145 INCHES MAXIMUM IN
•
MATERIAL: COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
BODY OUTSIDE DIAMETER0.7510 INCHES MINIMUM AND 0.7520 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
OVERALL LENGTH0.4060 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.5144 INCHES MINIMUM AND 0.5145 INCHES MAXIMUM IN
SPECIAL FEATURESLUBRICANT IMPREGNATED
MATERIALCOPPER ALLOY OVERALL
SUBSTITUTES & CROSS-REFERENCES 3
MA5950ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
7372639Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
A5950AReference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
Ready to buy 18789?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 18789?
18789 is a BEARING,SLEEVE manufactured by Clementoni.
What parts can replace 18789?
There are 3 known substitutes for 18789: MA5950A, 7372639, A5950A. Substitute compatibility should be verified for your specific system.
What is the NSN for 18789?
18789 is cataloged in the U.S. Government catalog under NSN 3120-00-428-7543. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 18789

✓ 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.