The Disk,valve, cataloged under National Stock Number 4820-01-423-1889, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Watson Mcdaniel Co. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-423-1889 |
| Primary Part Number | WD-600 .750 PN 2 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Watson Mcdaniel Co |
| Status | ACTIVE |
| Style Designator | SOLID |
| Media for Which Designed | STEAM |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| WD-600 .750 PN 2 PRIMARY | Watson Mcdaniel Co (USA) |
| Reference | Meaning |
|---|---|
| WD-600 .75IN PN | C/1 Advisory reference — outside the item-of-supply concept Watson Mcdaniel Co |
NSN 4820-01-423-1889 is a Disk,valve, manufactured by Watson Mcdaniel Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-423-1889 has 1 manufacturer part number on file: WD-600 .750 PN 2 (Watson Mcdaniel Co).
Key specifications for WD-600 .750 PN 2: Style Designator: SOLID; Media for Which Designed: STEAM; End Item Identification: 4730-01-422-4147; Material: STEEL CORROSION RESISTING. 3 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.