The Disk,valve, cataloged under National Stock Number 4820-01-061-6250, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-061-6250 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Outside Diameter | 3.250 INCHES NOMINAL IN |
| Inside Diameter | 1.873 INCHES NOMINAL 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 |
|---|---|
| 845-4558779 ITEM 29 | 3/2 Design control — primary reference U.S. Government activity |
| 845-4558779 ITEM 29 | 5/9 Secondary reference Naval Sea Systems Command |
| 2642-822-10 ITEM 29 | 5/2 Secondary reference U.S. Government activity |
| 2642-809-20 ITEM 1 | 5/2 Secondary reference U.S. Government activity |
| 264280920-0001 | 5/2 Secondary reference U.S. Government activity |
| 845-4558770 | D/9 Drawing number reference only U.S. Government activity |
NSN 4820-01-061-6250 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-061-6250: Overall Height: 0.562 INCHES NOMINAL IN; Outside Diameter: 3.250 INCHES NOMINAL IN; Inside Diameter: 1.873 INCHES NOMINAL IN. 2 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.