The Filter Unit,gas-Particulate, cataloged under National Stock Number 4240-01-343-3443, is classified within Federal Supply Class 4240 (Safety and Rescue Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-343-3443 |
| Item Name | Filter Unit,gas-Particulate |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Status | ACTIVE |
| FSC Application Data | METAL: ALUMINUM ALLOY; POWER SOURCE: BATTERY AND AIRCRAFT; OVERALL SIZE5 15/16 INCH BY 8 5/8 INCH IN |
| Supplementary Features | MAJOR COMPONENT: BLOWER; FILTER; QUICK RELEASE; BATTERY; THIS ITEM WITHNO HOSE CAN REPLACE 4240-01-338-6066 (-7 WITH 2 FT HOSE); 4240-01-338-8894 (-6 WITH 6 FT HOSE); AND 4240-01-339- 6866 (-8 WITH 4 FT HOSE); ALL HAVE DESIGNATION CQU-7/P BLOWER ASSEMBLY;AIRCRAFT MOUNTING BRACKET NSN 1560-01-333- 0573; CANISTER 4240-21-871-7842 (NATO C-2 STANDARD FILTER) FT |
| User Designator | AIRCRAFT CREWMAN |
| Filtration Rate | 1.000 CUBIC FEET PER MINUTE MINIMUM AND 2.000 CUBIC FEET PER MINUTE MAXIMUM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | F |
| Reference | Meaning |
|---|---|
| 560-14000-9 | 1/2 Source control — Government-approved source U.S. Government activity |
| 51620-80 | 3/2 Design control — primary reference U.S. Government activity |
| 4240PL1098646 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 560-14000-9 | 5/2 Secondary reference U.S. Government activity |
| CQU-7/P | 5/1 Secondary reference Aeronautical and Support Equipment Type/asetds/aflcmc/ezsc |
| 4240PL1732469 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 4240-01-343-3443 is a Filter Unit,gas-Particulate, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
Key specifications for 4240-01-343-3443: FSC Application Data: METAL: ALUMINUM ALLOY; POWER SOURCE: BATTERY AND AIRCRAFT; OVERALL SIZE5 15/16 INCH BY 8 5/8 INCH IN; Supplementary Features: MAJOR COMPONENT: BLOWER; FILTER; QUICK RELEASE; BATTERY; THIS ITEM WITHNO HOSE CAN REPLACE 4240-01-338-6066 (-7 WITH 2 FT HOSE); 4240-01-338-8894 (-6 WITH 6 FT HOSE); AND 4240-01-339- 6866 (-8 WITH 4 FT HOSE); ALL HAVE DESIGNATION CQU-7/P BLOWER ASSEMBLY;AIRCRAFT MOUNTING BRACKET NSN 1560-01-333- 0573; CANISTER 4240-21-871-7842 (NATO C-2 STANDARD FILTER) FT; Special Features: USED TO PROVIDE BLOWN AIR TO AN AIRCREW EYE/RESPIRATORY (AERP) HOOD/ MASK ASSEMBLY WORN BY TRI-SERVICES AIRCREW DURING GROUND/FLIGHT OPERATIONS; End Item Identification: MASK HOOD ASSEMBLY,MBU-19/P. 4 specifications are documented in the U.S. Government catalog.
Hazardous per DLA record (HMIC Y). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 4240-01-343-3443 has DEMIL Code F. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.