PartsTable
Technical Data Sheet

389-1/4 — CAPACITOR,FIXED,CERAMIC DIELECTR

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

389-1/4: CAPACITOR,FIXED,CERAMIC DIELECTR.

CAPACITOR,FIXED,CERAMIC DIELECTR. Key specifications include FSC APPLICATION DATA: TELETYPE AND FACSIMILE EQUIPMENT. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-008-3344, 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
MRO→ MRO_GENERAL→ 389-1/4
NSN: 4730-00-008-3344
NIINs: 000083344, 001744570, 009152902, 012506426
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)
SPECIFICATIONS
FSC APPLICATION DATATELETYPE AND FACSIMILE EQUIPMENT
NSN4730-00-008-3344
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 389-1/4 · 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
KEY FEATURES
•
HEAD TYPE: SOLID
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 0.250 INCHES IN
•
CONNECTION STYLE: PLAIN
•
DRIVE END STYLE: RECESSED HEXAGON
•
BODY TYPE: SOLID
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
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
TECHNICAL CHARACTERISTICS
HEAD TYPESOLID
NOMINAL PIPE SIZE FOR WHICH DESIGNED0.250 INCHES IN
CONNECTION STYLEPLAIN
DRIVE END STYLERECESSED HEXAGON
BODY TYPESOLID
MATERIALSTEEL CORROSION RESISTING OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
2843996-2Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 389-1/4?
389-1/4 is a CAPACITOR,FIXED,CERAMIC DIELECTR. It is classified as a MRO (MRO_GENERAL).
What parts can replace 389-1/4?
There is 1 known substitute for 389-1/4: 2843996-2. Substitute compatibility should be verified for your specific system.
What is the NSN for 389-1/4?
389-1/4 is cataloged in the U.S. Government catalog under NSN 4730-00-008-3344. 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.