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A943 ✓ 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,PAPER DIELECTRIC. Key specifications include functional_description: USED DURING COMPONENT MAINTENANCE/REPAIR. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-172-0058, 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
A943
NSN: 4730-00-172-0058
FSC: 4730
CAGE: 74080 — HARVARD INDUSTRIES (USA)
SPECIFICATIONS
functional_descriptionUSED DURING COMPONENT MAINTENANCE/REPAIR
NSN4730-00-172-0058
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: A943 · 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
•
HEIGHT: 1.000 INCHES MAXIMUM IN
•
THREAD QUANTITY PER INCH: 27
•
WIDTH ACROSS FLATS: 0.438 INCHES NOMINAL IN
•
ASSEMBLY CLEARANCE RADIUS: 0.625 INCHES MAXIMUM IN
•
SCREW THREAD SERIES DESIGNATOR: NPT
•
NOMINAL THREAD SIZE: 0.125 INCHES IN
•
ANGLE: 90.0 DEGREES
•
MATERIAL: STEEL 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 (FLIS)
HEIGHT1.000 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH27
WIDTH ACROSS FLATS0.438 INCHES NOMINAL IN
ASSEMBLY CLEARANCE RADIUS0.625 INCHES MAXIMUM IN
SCREW THREAD SERIES DESIGNATORNPT
NOMINAL THREAD SIZE0.125 INCHES IN
ANGLE90.0 DEGREES
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM OVERALL
STYLE DESIGNATORANGLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 36
1-693Interchangeable
interchangeable cross-reference
interchangeable
NAV132-56Interchangeable
interchangeable cross-reference
interchangeable
2-445N0674-70Interchangeable
interchangeable cross-reference
interchangeable
5-445Interchangeable
interchangeable cross-reference
interchangeable
458090-5Interchangeable
interchangeable cross-reference
interchangeable
122-660345 PC 30Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A943?
A943 is a CAPACITOR,FIXED,PAPER DIELECTRIC.
What parts can replace A943?
There are 36 known substitutes for A943: 1-693, NAV132-56, 2-445N0674-70 and 33 more. Substitute compatibility should be verified for your specific system.
Is A943 still available?
A943 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