The Filter Assembly,gas, cataloged under National Stock Number 4240-01-689-1063, 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 Dutton-Lainson Company. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | Filter Assembly,gas |
| FSC / FSG | 4240 — Safety and Rescue Equipment (FSG 42) |
| Manufacturers | Dutton-Lainson Company (CAGE 72031) |
| Parameter | Value |
|---|---|
| NSN | 4240-01-689-1063 |
| Primary Part Number | 56608 |
| Item Name | Filter Assembly,gas |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Manufacturer | Dutton-Lainson Company |
| 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 |
|---|---|
| 56608 PRIMARY | Dutton-Lainson Company (USA) |
NSN 4240-01-689-1063 is a Filter Assembly,gas, manufactured by Dutton-Lainson Company, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-01-689-1063 has 1 manufacturer part number on file: 56608 (Dutton-Lainson Company).
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.