The Valve Assembly, cataloged under National Stock Number 4820-01-384-1211, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Huntington Ingalls Inc Div Newport News Shipbuilding. Government technical data includes 4 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-384-1211 |
| Primary Part Number | 6559-48 ASSY 99 |
| Item Name | Valve Assembly |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Huntington Ingalls Inc Div Newport News Shipbuilding |
| Status | ACTIVE |
| Valve Quantity | 4 |
| Furnished Items and Quantity | 1 HANDWHEEL |
| Body Material | COPPER ALLOY |
| Valve Operation Method | AIR AND MANUAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6559-48 ASSY 99 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 517-4325727 ASSY 99 | 3/2 Design control — primary reference U.S. Government activity |
| 4325727 | D/9 Drawing number reference only U.S. Government activity |
NSN 4820-01-384-1211 is a Valve Assembly, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-384-1211 has 1 manufacturer part number on file: 6559-48 ASSY 99 (Huntington Ingalls Inc Div Newport News Shipbuilding).
Key specifications for 6559-48 ASSY 99: Valve Quantity: 4; Furnished Items and Quantity: 1 HANDWHEEL; Body Material: COPPER ALLOY; Valve Operation Method: AIR AND MANUAL. 4 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.