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KMDB18-2 — BEARING,PLAIN,SPHERICAL

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

KMDB18-2: BEARING,PLAIN,SPHERICAL.

The BEARING,PLAIN,SPHERICAL is a the manufacturer industrial component. Key specifications include overall_length: 1.4580 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN, body_inside_diameter: 1.1240 INCHES MINIMUM AND 1.1250 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-129-3446, 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
KMDB18-2
NSN: 3120-01-129-3446
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 97613 — SARGENT AEROSPACE & DEFENSE, LLC DBA KAHR BEARINGS (USA)
SPECIFICATIONS
overall_length1.4580 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN
body_inside_diameter1.1240 INCHES MINIMUM AND 1.1250 INCHES MAXIMUM IN
NSN3120-01-129-3446
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: KMDB18-2 · 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
•
BODY INSIDE DIAMETER: 1.1240 INCHES MINIMUM AND 1.1250 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL LENGTH1.4580 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN
BODY INSIDE DIAMETER1.1240 INCHES MINIMUM AND 1.1250 INCHES MAXIMUM 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 1
SB5074-101Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 KMDB18-2?
KMDB18-2 is a BEARING,PLAIN,SPHERICAL.
What parts can replace KMDB18-2?
There is 1 known substitute for KMDB18-2: SB5074-101. Substitute compatibility should be verified for your specific system.
What is the NSN for KMDB18-2?
KMDB18-2 is cataloged in the U.S. Government catalog under NSN 3120-01-129-3446. 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.