The Valve,purge, cataloged under National Stock Number 4820-01-434-8041, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-434-8041 |
| Item Name | Valve,purge |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Pressure Rating | ERR-060 |
| Surface Treatment | PASSIVATE |
| Material | STEEL CORROSION RESISTING |
| Thread Size and Series/type Designator | 0.438-20 UNIFIED NATIONAL JOINT FINE (UNJF) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| HV22-25 | 3/2 Design control — primary reference U.S. Government activity |
| 232-028-0001 | 1/2 Source control — Government-approved source U.S. Government activity |
| 232-028 | D/9 Drawing number reference only U.S. Government activity |
NSN 4820-01-434-8041 is a Valve,purge, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-434-8041: Overall Length: 1.138 INCHES NOMINAL IN; Pressure Rating: ERR-060; Surface Treatment: PASSIVATE; End Item Identification: JOINT STARS PROGRAM. 4 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.