The Disk,valve, cataloged under National Stock Number 4820-01-155-0389, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-155-0389 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Pressure Rating | 250.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Lower Surface Width | 1.512 INCHES NOMINAL IN |
| Shoulder Width | 0.359 INCHES NOMINAL IN |
| Shoulder Height | 0.188 INCHES NOMINAL IN |
| Outside Diameter | 6.509 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Inside Diameter | 2.010 INCHES MINIMUM AND 2.015 INCHES MAXIMUM IN |
| Media for Which Designed | GAS OR OIL OR WATER |
| Material | PLASTIC |
| 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 |
|---|---|
| 803-1385623-061-44 | 5/9 Secondary reference U.S. Government activity |
| 803-1385623 | D/9 Drawing number reference only U.S. Government activity |
| 803-1385623-064-44 | 3/2 Design control — primary reference U.S. Government activity |
| 803-1385623-06X | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 810-1385623-061 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 4820-01-155-0389 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-155-0389: Overall Height: 0.500 INCHES NOMINAL IN; Pressure Rating: 250.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Lower Surface Width: 1.512 INCHES NOMINAL IN; Shoulder Width: 0.359 INCHES NOMINAL IN. 9 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.