The Nozzle,valve, cataloged under National Stock Number 4820-01-122-1059, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-122-1059 |
| Primary Part Number | 518-4678442 ITEM 2 |
| Item Name | Nozzle,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Material | NICKEL ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 518-4678442 ITEM 2 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 518-4678442 ITEM 2 | 5/2 Secondary reference U.S. Government activity |
| 87696-1621 ITEM 2 | 3/2 Design control — primary reference U.S. Government activity |
| 518-4678442 | D/9 Drawing number reference only U.S. Government activity |
NSN 4820-01-122-1059 is a Nozzle,valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-122-1059 has 1 manufacturer part number on file: 518-4678442 ITEM 2 (Naval Sea Systems Command).
Key specifications for 518-4678442 ITEM 2: Overall Length: 17.500 INCHES NOMINAL IN; Material: NICKEL ALLOY. 1 specification is 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.
NSN 4820-01-122-1059 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.