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PartsTable / COMPONENT / 503-0189
503-0189 ✓ 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,CERAMIC DIELECTR. Key specifications include material: ALUMINUM AND STEEL OVERALL, overall_width: 0.500 INCHES NOMINAL IN, inside_diameter: 0.500 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN, style_designator: WIRE, fastening_device_type: SLOTTED HEXAGON HEAD SCREW. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-046-3872, 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
503-0189
NSN: 4730-01-046-3872
FSC: 4730
CAGE: 44940 — CUMMINS POWER GENERATION INC. (USA)
SPECIFICATIONS
materialALUMINUM AND STEEL OVERALL
overall_width0.500 INCHES NOMINAL IN
inside_diameter0.500 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
style_designatorWIRE
fastening_device_typeSLOTTED HEXAGON HEAD SCREW
NSN4730-01-046-3872
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 503-0189 · 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
•
STYLE DESIGNATOR: WIRE
•
MATERIAL: ALUMINUM AND STEEL OVERALL
•
INSIDE DIAMETER: 0.500 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
•
FASTENING DEVICE TYPE: SLOTTED HEXAGON HEAD SCREW
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)
STYLE DESIGNATORWIRE
MATERIALALUMINUM AND STEEL OVERALL
OVERALL WIDTH0.500 INCHES NOMINAL IN
INSIDE DIAMETER0.500 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
FASTENING DEVICE TYPESLOTTED HEXAGON HEAD SCREW
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
14341Interchangeable
interchangeable cross-reference
interchangeable
GGG-F-325Interchangeable
interchangeable cross-reference
interchangeable
GGG-F-325 TY18CL2Interchangeable
interchangeable cross-reference
interchangeable
26176Interchangeable
interchangeable cross-reference
interchangeable
300-018813-001Interchangeable
interchangeable cross-reference
interchangeable
25C167Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 503-0189?
503-0189 is a CAPACITOR,FIXED,CERAMIC DIELECTR.
What parts can replace 503-0189?
There are 11 known substitutes for 503-0189: 14341, GGG-F-325, GGG-F-325 TY18CL2 and 8 more. Substitute compatibility should be verified for your specific system.
Is 503-0189 still available?
503-0189 is currently cancelled.
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Last verified: July 2026