The Mask,chemical-Biological, cataloged under National Stock Number 4240-01-686-2486, is classified within Federal Supply Class 4240 (Safety and Rescue Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Itl Llc Dba Itl Solutions. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Mask,chemical-Biological |
| FSC / FSG | 4240 — Safety and Rescue Equipment (FSG 42) |
| Manufacturers | Itl Llc Dba Itl Solutions (CAGE 7BGA2) |
| Parameter | Value |
|---|---|
| NSN | 4240-01-686-2486 |
| Primary Part Number | 11500000 |
| Item Name | Mask,chemical-Biological |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Manufacturer | Itl Llc Dba Itl Solutions |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 11500000 PRIMARY | Itl Llc Dba Itl Solutions (USA) |
| Reference | Meaning |
|---|---|
| 11500000 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 4240-01-686-2486 is a Mask,chemical-Biological, manufactured by Itl Llc Dba Itl Solutions, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-01-686-2486 has 1 manufacturer part number on file: 11500000 (Itl Llc Dba Itl Solutions).
1 possible match (shared part number, not a government interchangeability claim): 5985-01-728-2457. Verify interchangeability with system specifications before substitution.
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 4240-01-686-2486 has DEMIL Code Q. 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.