The Disk,valve, cataloged under National Stock Number 4820-01-220-5919, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is DC Fabricators Inc. 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-220-5919 |
| Primary Part Number | 54790-119 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | DC Fabricators Inc |
| Status | ACTIVE |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| 54790-119 | DC Fabricators Inc (USA) |
| Reference | Meaning |
|---|---|
| 54790-119 | 5/9 Secondary reference Siemens Energy, Inc. |
| EW155E | 3/9 Design control — primary reference Tri Med Inc |
| 57490 PIECE 119 | 5/9 Secondary reference Siemens Energy, Inc. |
| 56145 PIECE 119 | 5/9 Secondary reference Siemens Energy, Inc. |
| 57490-119 | C/1 Advisory reference — outside the item-of-supply concept Siemens Energy, Inc. |
NSN 4820-01-220-5919 is a Disk,valve, manufactured by DC Fabricators Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-220-5919 has 1 manufacturer part number on file: 54790-119 (DC Fabricators Inc).
Key specifications for 54790-119: Material: COPPER 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.
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.