The Disk,mask,chemical-, cataloged under National Stock Number 4240-01-246-1996, is classified within Federal Supply Class 4240 (Safety and Rescue Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-246-1996 |
| Item Name | Disk,mask,chemical- |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Status | ACTIVE |
| FSC Application Data | MASK,CHEMICAL-BIOLOGICAL |
| General Characteristics Item Description | FOR USE W/NOSECUP |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| TDA-124 | 5/9 Secondary reference Hamilton Associates Inc Div Air Techniques International (ati) |
| Q212 | 5/9 Secondary reference Hamilton Associates Inc Div Air Techniques International (ati) |
| 88115029 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4240-01-246-1996 is a Disk,mask,chemical-, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
Key specifications for 4240-01-246-1996: FSC Application Data: MASK,CHEMICAL-BIOLOGICAL; General Characteristics Item Description: FOR USE W/NOSECUP; End Item Identification: MCU-2P/ MASK,CHEMICAL-BIOLOGICAL. 2 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 4240-01-246-1996 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.