The Seat,valve, cataloged under National Stock Number 4820-01-480-2233, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Air Liquide Advanced Technologies. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-480-2233 |
| Primary Part Number | W002149 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Air Liquide Advanced Technologies |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| W002149 | Air Liquide Advanced Technologies (FRA) |
| HADB 1067-38 | Air Liquide Advanced Technologies (FRA) |
| Reference | Meaning |
|---|---|
| 1067-38 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-480-2233 is a Seat,valve, manufactured by Air Liquide Advanced Technologies, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-480-2233 has 2 manufacturer part numbers on file: W002149 (Air Liquide Advanced Technologies), HADB 1067-38 (Air Liquide Advanced Technologies).
Key specifications for W002149: End Item Identification: USED ON MICRA SECOND STAGE INDEPENDENT BACK UP BREATHING SYSTEM. 0 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.