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FL401 — RESISTOR,FIXED,WIRE WOUND,INDUCT

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

FL401: RESISTOR,FIXED,WIRE WOUND,INDUCT.

RESISTOR,FIXED,WIRE WOUND,INDUCT. Key specifications include body_material: METAL, inclosure_type: ENCASED, overall_length: 14.625 INCHES NOMINAL IN, style_designator: ROUND TERMINAL/TERMINALS ON OPPOSITE SURFACES, operating_temp_range: -55.0 TO 85.0 CELSIUS DEGC, body_outside_diameter: 0.813 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-172-0028, 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→ FL401
NSN: 4730-00-172-0028
NIINs: 001720028, 006508966
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 27996 — HEIL ENVIRONMENTAL INDUSTRIES (USA)
SPECIFICATIONS
body_materialMETAL
inclosure_typeENCASED
overall_length14.625 INCHES NOMINAL IN
style_designatorROUND TERMINAL/TERMINALS ON OPPOSITE SURFACES
operating_temp_range-55.0 TO 85.0 CELSIUS DEGC
body_outside_diameter0.813 INCHES NOMINAL IN
load_impedance_per_function50.0 OHMS BLANK LOCATION NOT OTHERWISE SPECIFIED
input_terminal_identificationSMA-CONNECTOR PLUG
output_terminal_identificationSMA-RECEPTACLE
input_terminal_manufacturer_code00929
reference_frequency_per_function400.0 MEGAHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED
output_terminal_manufacturer_code00929
NSN4730-00-172-0028
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: FL401 · 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
SUBSTITUTES & CROSS-REFERENCES 10
LT2-65Reference document
Same NSN cross-reference
Reference document — Secondary reference
PA43716AReference document
Same NSN cross-reference
Reference document — Secondary reference
56994Reference document
Same NSN cross-reference
Reference document — Secondary reference
A5200Reference document
Same NSN cross-reference
Reference document — Secondary reference
S225V36Reference document
Same NSN cross-reference
Reference document — Secondary reference
173102Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is FL401?
FL401 is a RESISTOR,FIXED,WIRE WOUND,INDUCT. It is classified as a MRO (MRO_GENERAL).
What parts can replace FL401?
There are 10 known substitutes for FL401: LT2-65, PA43716A, 56994 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FL401?
FL401 is cataloged in the U.S. Government catalog under NSN 4730-00-172-0028. This indicates validated use in U.S. government and defense supply chains.
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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.