PartsTable
Technical Data Sheet
PartsTable / MRO / A-4400
A-4400 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include relay: NOT INCLUDED, material: RUBBER TOP, lens_color: RED, hole_diameter: 0.312 INCHES NOMINAL IN, mounting_method: FLANGE, actuation_method: BUOYANCY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6220-00-333-5821, 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→ A-4400
NSN: 6220-00-333-5821
FSC: 6220
CAGE: 72914 — GRIMES AEROSPACE COMPANY (USA)
SPECIFICATIONS
relayNOT INCLUDED
materialRUBBER TOP
lens_colorRED
hole_diameter0.312 INCHES NOMINAL IN
float_quantity2
mounting_methodFLANGE
actuation_methodBUOYANCY
special_featuresDISPOSABLE,INDIVIDUAL PACKAGE
lens_transparencyTRANSPARENT
mounting_positionVERTICAL
tank_insertion_length75.000 INCHES NOMINAL IN
float_effective_travel2.000 INCHES MINIMUM AND 6.000 INCHES MAXIMUM IN
NSN6220-00-333-5821
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available FILTER,RADIO FREQUENCY INTERFERE TITLE COMPONENT PN A-4400 MFR FILTER,RADIO FREQUENCY
KEY FEATURES
•
LAMP TYPE ACCOMMODATED AND QUANTITY: 1 INCANDESCENT
•
LENS SURFACE CONDITION: SMOOTH FACE
•
MOUNTING METHOD: THREADED BUSHING
•
LENS TYPE AND QUANTITY: 1 FLAT, RECTANGULAR
•
LENS COLOR: RED
•
LENS TRANSPARENCY: TRANSPARENT
•
VOLTAGE RATING IN VOLTS: 28.0 DC NOMINAL
TECHNICAL CHARACTERISTICS (FLIS)
LAMP TYPE ACCOMMODATED AND QUANTITY1 INCANDESCENT
LENS SURFACE CONDITIONSMOOTH FACE
LENS SURFACE CONDITIONSMOOTH BACK
MOUNTING METHODTHREADED BUSHING
LENS TYPE AND QUANTITY1 FLAT, RECTANGULAR
LENS COLORRED
LENS TRANSPARENCYTRANSPARENT
VOLTAGE RATING IN VOLTS28.0 DC NOMINAL
LAMP BASE TYPE ACCOMMODATEDSINGLE CONTACT BAYONET CANDELABRA
TERMINAL TYPE AND QUANTITY1 SCREW
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
LS-800-TY3Interchangeable
interchangeable cross-reference
interchangeable
A4400Interchangeable
interchangeable cross-reference
interchangeable
LS-800 TYPE 4Interchangeable
interchangeable cross-reference
interchangeable
655259-1Interchangeable
interchangeable cross-reference
interchangeable
MIL-001-336Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A-4400?
A-4400 is a FILTER,RADIO FREQUENCY INTERFERE. It is classified as a MRO (MRO_GENERAL).
What parts can replace A-4400?
There are 5 known substitutes for A-4400: LS-800-TY3, A4400, LS-800 TYPE 4 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A-4400?
A-4400 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6220-00-333-5821. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026