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MF250 — FILTER,RADIO FREQUENCY INTERFERE

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

MF250: FILTER,RADIO FREQUENCY INTERFERE.

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include end_item_identification: APPROACH LIGHT SEQUENCE FLASHER 2 (ALSF2). This part is cataloged in the U.S.

Government catalog under NSN 4820-01-398-2111, 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→ MF250
NSN: 4820-01-398-2111
NIINs: 013982111, 014728124
FSC: 4820 — Valves, Nonpowered
CAGE: 30901 — AIR TECHNICAL INDUSTRIES, INC. (USA)
SPECIFICATIONS
end_item_identificationAPPROACH LIGHT SEQUENCE FLASHER 2 (ALSF2)
NSN4820-01-398-2111
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: MF250 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
STYLE DESIGNATOR: SCREW-IN CARTRIDGE
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSCREW-IN CARTRIDGE
END ITEM IDENTIFICATIONDYNACON INC;HYDROGRAPHIC WINCH;MODEL 1104D
SUBSTITUTES & CROSS-REFERENCES 3
304-8009-01 ITEM 5Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MF250-BReference document
Same NSN cross-reference
Reference document — Secondary reference
91925481Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MF250?
MF250 is a FILTER,RADIO FREQUENCY INTERFERE. It is classified as a MRO (MRO_GENERAL).
What parts can replace MF250?
There are 3 known substitutes for MF250: 304-8009-01 ITEM 5, MF250-B, 91925481. Substitute compatibility should be verified for your specific system.
What is the NSN for MF250?
MF250 is cataloged in the U.S. Government catalog under NSN 4820-01-398-2111. 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.