The Valve,diaphragm,stop, cataloged under National Stock Number 4820-01-449-1079, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Cancelled.
| Item Name | Valve,diaphragm,stop |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-449-1079 |
| Item Name | Valve,diaphragm,stop |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | CANCELLED |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 25147-01J | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 22400-01E | 5/9 Secondary reference U.S. Government activity |
| 25147-01J | 3/2 Design control — primary reference U.S. Government activity |
| 25147 | D/9 Drawing number reference only U.S. Government activity |
| 22400 4IN. | 5/9 Secondary reference U.S. Government activity |
| 181M-1 4IN. | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-449-1079 is a Valve,diaphragm,stop, classified under FSC 4820, Valves, Nonpowered. Status: cancelled.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 4820-01-449-1079 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.