The Valve,moisture Drain, cataloged under National Stock Number 4820-01-050-3478, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-050-3478 |
| Item Name | Valve,moisture Drain |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM,CHROMIC ACID ANODIZE ALL SURFACES PER MIL-A-8625,TYPE 1,SEALS SYNTHETIC RUBBER; OPERATING MEDIA AIR; 0.875 IN. MAX LG IN |
| 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 |
|---|---|
| 71C-4GD | 3/2 Design control — primary reference U.S. Government activity |
| 4820PL0654997 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 7926-1 | 5/9 Secondary reference U.S. Government activity |
| C7926-1 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 4820-01-050-3478 is a Valve,moisture Drain, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-050-3478: General Characteristics Item Description: ALUMINUM,CHROMIC ACID ANODIZE ALL SURFACES PER MIL-A-8625,TYPE 1,SEALS SYNTHETIC RUBBER; OPERATING MEDIA AIR; 0.875 IN. MAX LG IN. 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.
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.