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Technical Data Sheet
PartsTable / COMPONENT / 12343
12343 ✓ Verified by PartsTable
— · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

CAPACITOR,VARIABLE,CERAMIC DIELE. Key specifications include cover: NOT PROVIDED, depth: 2.500 INCHES NOMINAL IN, material: STEEL, load_capacity: 2.0 QUARTS MAXIMUM, overall_width: 1.188 INCHES NOMINAL IN, inclosure_type: FULLY INCLOSED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-042-4250, 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
12343
NSN: 3120-00-042-4250
FSC: 3120
CAGE: 03798 — WESTERBEKE CORPORATION (USA)
SPECIFICATIONS
coverNOT PROVIDED
depth2.500 INCHES NOMINAL IN
materialSTEEL
load_capacity2.0 QUARTS MAXIMUM
overall_width1.188 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
overall_height1.125 INCHES NOMINAL IN
overall_length2.781 INCHES NOMINAL IN
first_end_styleUNTHREADED CROSS DRILLED
mounting_methodTHREADED HOLE(S) SINGLE GROUP
frequency_rating10.0 KILOHERTZ NOMINAL SINGLE COMPONENT
special_featuresONE-QUARTER SIZE PAN
NSN3120-00-042-4250
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 12343 · 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
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
12343Interchangeable
interchangeable cross-reference
interchangeable
A-A-50179Interchangeable
interchangeable cross-reference
interchangeable
AP200-1/4-2-1/2Interchangeable
interchangeable cross-reference
interchangeable
AA50179-1A14Interchangeable
interchangeable cross-reference
interchangeable
85037Interchangeable
interchangeable cross-reference
interchangeable
D85037Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12343?
12343 is a CAPACITOR,VARIABLE,CERAMIC DIELE.
What parts can replace 12343?
There are 9 known substitutes for 12343: 12343, A-A-50179, AP200-1/4-2-1/2 and 6 more. Substitute compatibility should be verified for your specific system.
Is 12343 still available?
12343 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026