The Tube,safety Valve, cataloged under National Stock Number 4820-01-300-1748, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Lexair Inc. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | Tube,safety Valve |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Wellman Group (CAGE K7018); Lexair Inc (CAGE 56607) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-300-1748 |
| Primary Part Number | P55838-1 |
| Item Name | Tube,safety Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Lexair Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 156 ITEM 3 | Wellman Group (GBR) |
| 156/3 | Wellman Group (GBR) |
| X5008/12/156 ITEM 3 | Wellman Group (GBR) |
| P55838-1 PRIMARY | Lexair Inc (USA) |
| X5008/12/156/3 | Wellman Group (GBR) |
NSN 4820-01-300-1748 is a Tube,safety Valve, manufactured by Lexair Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-300-1748 has 5 manufacturer part numbers on file: 156 ITEM 3 (Wellman Group), 156/3 (Wellman Group), X5008/12/156 ITEM 3 (Wellman Group), P55838-1 (Lexair Inc), X5008/12/156/3 (Wellman Group).
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.