The Hose,air Duct,air Breathing, cataloged under National Stock Number 4240-01-641-4085, 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 Avox Systems Inc Dba Avox Systems Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-641-4085 |
| Primary Part Number | 156-182-1 |
| Item Name | Hose,air Duct,air Breathing |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Manufacturer | Avox Systems Inc Dba Avox Systems Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 156-182-1 PRIMARY | Avox Systems Inc Dba Avox Systems Inc (USA) |
NSN 4240-01-641-4085 is a Hose,air Duct,air Breathing, manufactured by Avox Systems Inc Dba Avox Systems Inc, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-01-641-4085 has 1 manufacturer part number on file: 156-182-1 (Avox Systems Inc Dba Avox Systems Inc).
Key specifications for 156-182-1: Part Name Assigned by Controlling Agency: HOSE,LONG(PART OF KIT PN 651-283); End Item Identification: FIRE FIGHTERS MASK ASSEMBLY. 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.
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.