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MIL-F-3541B — RESISTOR,FIXED,WIRE WOUND,INDUCT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

MIL-F-3541B: RESISTOR,FIXED,WIRE WOUND,INDUCT.

RESISTOR,FIXED,WIRE WOUND,INDUCT. Key specifications include height: 0.500 INCHES NOMINAL IN, material: STEEL CORROSION RESISTING OVERALL, shank_length: 0.188 INCHES NOMINAL IN, special_features: SURFACE OR THROAT LOCATED BALL CHECK VALVE, style_designator: STRAIGHT, width_across_flats: 0.312 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-050-4203, 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
MIL-F-3541B
NSN: 4730-00-050-4203
NIINs: 000504203, 000504205, 000504206, 000504207, 000504208, 001720001, 001720015, 001720022, 001720028, 001720031, 001720034, 001720042, 001720043, 001720044, 001720046, 001720047, 001720049, 001720058, 009163368
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
height0.500 INCHES NOMINAL IN
materialSTEEL CORROSION RESISTING OVERALL
shank_length0.188 INCHES NOMINAL IN
special_featuresSURFACE OR THROAT LOCATED BALL CHECK VALVE
style_designatorSTRAIGHT
width_across_flats0.312 INCHES NOMINAL IN
nominal_thread_size0.250 INCHES IN
thread_quantity_per_inch28
screw_thread_series_designatorNPTF
material_document_and_classificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN4730-00-050-4203
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MIL-F-3541B · 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
122-660345 PC 30Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
200954Reference document
Same NSN cross-reference
Reference document — Secondary reference
122-5277738 ITEM 33Reference document
Same NSN cross-reference
Reference document — Secondary reference
1641BReference document
Same NSN cross-reference
Reference document — Secondary reference
AB1303-215Reference document
Same NSN cross-reference
Reference document — Secondary reference
87907S8Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MIL-F-3541B?
MIL-F-3541B is a RESISTOR,FIXED,WIRE WOUND,INDUCT.
What parts can replace MIL-F-3541B?
There are 10 known substitutes for MIL-F-3541B: 122-660345 PC 30, 200954, 122-5277738 ITEM 33 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-F-3541B?
MIL-F-3541B is cataloged in the U.S. Government catalog under NSN 4730-00-050-4203. 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.