The Valve,regulating,oxygen System P, cataloged under National Stock Number 4820-01-365-5583, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is East/west Industries, Inc.. Government technical data includes 1 specification, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-365-5583 |
| Primary Part Number | 361E840-1 |
| Item Name | Valve,regulating,oxygen System P |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | East/west Industries, Inc. |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 361E840-1 PRIMARY | East/west Industries, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 10307534 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 4820-01-365-5583 is a Valve,regulating,oxygen System P, manufactured by East/west Industries, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-365-5583 has 1 manufacturer part number on file: 361E840-1 (East/west Industries, Inc.).
Key specifications for 361E840-1: Criticality Code Justification: FEAT; Special Features: COMPONENTS INCLUDE 'O' RING 2,RETAINING RING 2,MALE CONNECTOR 1,RDCR BODY,1,RDCR POPPET 1,RDCR RETAINER 1,RDCR PISTON 1,RING LOCK 1,BACK-UP RING 1,STOP 1,FILTER 1,POPPET GUIDE 1,SEAT 1,POPPET SPRING 1;FLIGHT SAFETY CRITICAL; End Item Identification: AIRCRAFT MODELS F-14D,F-18C/D. 1 specification is 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.
NSN 4820-01-365-5583 has DEMIL Code D. 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.