The Disk,valve, cataloged under National Stock Number 4820-00-175-7784, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is General Electric Company. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Disk,valve |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | General Electric Company (CAGE 01289) |
| Parameter | Value |
|---|---|
| NSN | 4820-00-175-7784 |
| Primary Part Number | 6658521-1 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | General Electric Company |
| 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 |
|---|---|
| 6658521-1 PRIMARY | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| WW5599124SH4PC2 | 5/9 Secondary reference General Electric Co Switchgear and Control Division of Apparatus Group |
| WW5599124SH1PC2 | 5/9 Secondary reference General Electric Company |
| WW5599149PC67 | 5/9 Secondary reference General Electric Co Switchgear and Control Division of Apparatus Group |
| 6658521-1 | 5/9 Secondary reference General Electric Co Switchgear and Control Division of Apparatus Group |
| WW5599124SH4PC2 | 5/9 Secondary reference General Electric Company |
| 6658521-1 | 5/9 Secondary reference General Electric Company |
| 6658521-1 | 5/9 Secondary reference U.S. Government activity |
| WW5599149PC67 | 5/9 Secondary reference General Electric Company |
| WW5599124SH1PC2 | 5/9 Secondary reference General Electric Co Switchgear and Control Division of Apparatus Group |
NSN 4820-00-175-7784 is a Disk,valve, manufactured by General Electric Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-175-7784 has 1 manufacturer part number on file: 6658521-1 (General Electric Company).
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.