The Respirator,air Filtering, cataloged under National Stock Number 4240-01-389-2964, is classified within Federal Supply Class 4240 (Safety and Rescue Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-389-2964 |
| Item Name | Respirator,air Filtering |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Status | ACTIVE |
| Filter Replaceability | NONREPLACEABLE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 94-8-23-1 DE | 5/1 Secondary reference Naval Medical Material Support Command Detachment |
| N94H005 | 5/1 Secondary reference Naval Medical Material Support Command Detachment |
| HEPA-TECH 3010 | 5/1 Secondary reference Uvex Sports Inc |
| 3011 | 3/9 Design control — primary reference Uvex Sports Inc |
NSN 4240-01-389-2964 is a Respirator,air Filtering, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
Key specifications for 4240-01-389-2964: Special Features: 10/BOX, 4 BOXES/CS; SMALL SIZE; PATENTED FOAM SEALING FLANGE; HYPO-ALLERGENIC, INERT MATERIAL; HALF-MASK RESPIRATOR; HEPA-TECH TRI-FILTER MATERIAL, CONTAINS NO FIBERGLASS, SELF-EXTINGUISHING; FILTRATION CHARACTERISTICS 99.7% EFFICIENT AGAINST 0.3 MICRON MONODISPERSE DOP AEROSOL; BRAIDED-ELASTIC-FABRIC ADJUSTABLE HEADBAND; COMPATIBLE FIT WITH OTHER SAFETY PRODUCTS; Filter Replaceability: NONREPLACEABLE; Part Name Assigned by Controlling Agency: RESPIRATOR AIR FILTERING HEPA-TECH 40S. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
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.