The Filter,respirator,air Filtering, cataloged under National Stock Number 4240-01-362-5121, is classified within Federal Supply Class 4240 (Safety and Rescue Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-362-5121 |
| Item Name | Filter,respirator,air Filtering |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| AK51 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 125241-220 | 3/1 Design control — primary reference Ingersoll-Rand Company Dba Ingersoll-Rand |
| AK51 | 5/1 Secondary reference General Dynamics Services Co Reactor Plant Services |
| AK51 | 5/9 Secondary reference Radiation Protection Systems, Inc. Div Rps |
NSN 4240-01-362-5121 is a Filter,respirator,air Filtering, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
Key specifications for 4240-01-362-5121: Part Name Assigned by Controlling Agency: FILTER,RESPIRATOR,AIR FILTERING. 0 specifications are 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.
NSN 4240-01-362-5121 has DEMIL Code D. 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.