The Lock Device,valve, cataloged under National Stock Number 4820-01-667-6723, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Lock Device,valve |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Naval Sea Systems Command (CAGE 53711) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-667-6723 |
| Primary Part Number | 551-7068558-F285 |
| Item Name | Lock Device,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 551-7068555-F286 | Naval Sea Systems Command (USA) |
| 551-7068558-F285 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 801-6404994 ASSY 75 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| H845-3002-F286 | 5/2 Secondary reference U.S. Government activity |
| DF330811 ASSY 75 | C/1 Advisory reference — outside the item-of-supply concept Huntington Ingalls Inc Div Newport News Shipbuilding |
| 211062987 | 5/2 Secondary reference U.S. Government activity |
| H845-3102-F285 | 5/2 Secondary reference U.S. Government activity |
NSN 4820-01-667-6723 is a Lock Device,valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-667-6723 has 2 manufacturer part numbers on file: 551-7068555-F286 (Naval Sea Systems Command), 551-7068558-F285 (Naval Sea Systems Command).
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.