The Valve,drain,pressure, cataloged under National Stock Number 4820-01-191-6583, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-191-6583 |
| Primary Part Number | HL-19682-225 |
| Item Name | Valve,drain,pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| General Characteristics Item Description | BRONZE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| HL-19682-225 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| HL-20039 PIECE 225 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Reference | Meaning |
|---|---|
| HL-19682-225 | 3/9 Design control — primary reference U.S. Government activity |
| HL-20039 PIECE 225 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-191-6583 is a Valve,drain,pressure, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-191-6583 has 2 manufacturer part numbers on file: HL-19682-225 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), HL-20039 PIECE 225 (Curtiss-Wright Electro-Mechanical Corporation Div Epd).
Key specifications for HL-19682-225: General Characteristics Item Description: BRONZE. 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.