The Cover,filter,cartridge, cataloged under National Stock Number 4240-01-391-7063, 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1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-391-7063 |
| Item Name | Cover,filter,cartridge |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Status | ACTIVE |
| Material | PLASTIC |
| 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 |
|---|---|
| R38 | 5/9 Secondary reference 3m Company |
| R38 | 3/9 Design control — primary reference Aearo Company 1 Dba Aearo Div Ao Safety Occupational Prescription Eyewear |
NSN 4240-01-391-7063 is a Cover,filter,cartridge, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
Key specifications for 4240-01-391-7063: Special Features: COVER FITS OVER VARIOUS CARTRIDGES; NIOSH APPROVAL FOR TC-21C-589,TC-21C-144,TC-21C-207,AND TC-21C-520; SOLE SOURCE REQUIRED BY STATUTE 6.302; Material: PLASTIC. 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.