The Disk,valve, cataloged under National Stock Number 4820-01-195-4487, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is English Electric Corp. Government technical data includes 2 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-195-4487 |
| Primary Part Number | RW1/820453-11 P602 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | English Electric Corp |
| Status | ACTIVE |
| Pressure Rating | 30.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| 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 |
|---|---|
| RW1/820453-11 P602 PRIMARY | English Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| RW-820453-A1 FIND 11 | 5/9 Secondary reference David Brown Special Products Ltd |
| RW1/820453-11 | C/1 Advisory reference — outside the item-of-supply concept English Electric Corp |
| RW-820453-A1 FIND 11 | C/1 Advisory reference — outside the item-of-supply concept David Brown Gear Systems Limited |
| RW-820453-A1 FIND 11 | 5/9 Secondary reference Brown David Vehicle Products Ltd |
NSN 4820-01-195-4487 is a Disk,valve, manufactured by English Electric Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-195-4487 has 1 manufacturer part number on file: RW1/820453-11 P602 (English Electric Corp).
Key specifications for RW1/820453-11 P602: Pressure Rating: 30.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Material: COPPER ALLOY. 2 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.