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X12143 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

CAPACITOR,FIXED,PLASTIC DIELECTR. Key specifications include material: STEEL OVERALL, body_style: W/O MTG FACILITIES, TERMINALS ON OPPOSITE SURFACES, body_width: 0.250 INCHES NOMINAL IN, head_angle: 15.0 DEGREES NOMINAL, point_type: CONVENTIONAL, shaft_type: ROUND, FLATTED SINGLE ACTUATOR. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-828-0171, 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
X12143
NSN: 4730-00-828-0171
FSC: 4730
CAGE: 28839 — TELEDYNE INDUSTRIES INC TELEDYNE POWER SYSTEMS DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_styleW/O MTG FACILITIES, TERMINALS ON OPPOSITE SURFACES
body_width0.250 INCHES NOMINAL IN
head_angle15.0 DEGREES NOMINAL
point_typeCONVENTIONAL
shaft_typeROUND, FLATTED SINGLE ACTUATOR
body_height0.359 INCHES NOMINAL IN
body_length0.688 INCHES NOMINAL IN
flat_height0.219 INCHES NOMINAL SINGLE ACTUATOR IN
point_angle118.0 DEGREES NOMINAL
shank_styleSTANDARD TAPER W/TANG
flute_length10.375 INCHES NOMINAL IN
NSN4730-00-828-0171
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: X12143 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections 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 31
GM121887Interchangeable
interchangeable cross-reference
interchangeable
400684Interchangeable
interchangeable cross-reference
interchangeable
1000-812Interchangeable
interchangeable cross-reference
interchangeable
AN912-8Interchangeable
interchangeable cross-reference
interchangeable
45B2344Interchangeable
interchangeable cross-reference
interchangeable
1003050026Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is X12143?
X12143 is a CAPACITOR,FIXED,PLASTIC DIELECTR.
What parts can replace X12143?
There are 31 known substitutes for X12143: GM121887, 400684, 1000-812 and 28 more. Substitute compatibility should be verified for your specific system.
Is X12143 still available?
X12143 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