The Valve,check,oxygen System, cataloged under National Stock Number 4820-00-063-1074, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Safran Aerosystems Ex Safran Aerotechnics Oxy. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-063-1074 |
| Primary Part Number | 9533-B-1PP |
| Item Name | Valve,check,oxygen System |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Safran Aerosystems Ex Safran Aerotechnics Oxy |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 9533-B-1PP | Safran Aerosystems Ex Safran Aerotechnics Oxy (FRA) |
| Reference | Meaning |
|---|---|
| 9533B1PPCP | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 9533B1PP | 3/1 Design control — primary reference U.S. Government activity |
NSN 4820-00-063-1074 is a Valve,check,oxygen System, manufactured by Safran Aerosystems Ex Safran Aerotechnics Oxy, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-063-1074 has 1 manufacturer part number on file: 9533-B-1PP (Safran Aerosystems Ex Safran Aerotechnics Oxy).
Key specifications for 9533-B-1PP: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330. 2 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.