The Disk,valve, cataloged under National Stock Number 4820-01-209-3379, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-209-3379 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Nominal Thread Size | 1.500 INCHES IN |
| Media for Which Designed | GAS OR OIL OR WATER |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 8 |
| Material | NICKEL ALLOY |
| Thread Series Designator | UN |
| 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 |
|---|---|
| 803-1385637-10X-18 | 3/2 Design control — primary reference U.S. Government activity |
| 803-1385637 | D/9 Drawing number reference only U.S. Government activity |
NSN 4820-01-209-3379 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-209-3379: Nominal Thread Size: 1.500 INCHES IN; Special Features: INCLUDES HINGE,DISK STUD WASHER,DISK NUT AND COTTER PIN; Media for Which Designed: GAS OR OIL OR WATER; Thread Class: 2A A. 6 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.