The Disk,valve, cataloged under National Stock Number 4820-01-234-0089, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-234-0089 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Pressure Rating | 100.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Taper Minor Diameter | 1.500 INCHES NOMINAL IN |
| Style Designator | SOLID WEDGE |
| Taper Major Diameter | 3.875 INCHES NOMINAL IN |
| Nominal Thread Size | 1.141 INCHES IN |
| Taper Length | 8.500 INCHES NOMINAL IN |
| Media for Which Designed | WATER |
| Thread Class | 3B |
| Thread Quantity Per Inch | 12 |
| Material | COPPER ALLOY |
| Thread Series Designator | UN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| A-47040-171 PIECE 3 | 3/9 Design control — primary reference Crane Co Crane Valve and Parts Div |
| A-47040 | D/9 Drawing number reference only Crane Co Crane Valve and Parts Div |
NSN 4820-01-234-0089 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-234-0089: Overall Height: 11.875 INCHES NOMINAL IN; Pressure Rating: 100.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Taper Minor Diameter: 1.500 INCHES NOMINAL IN; Style Designator: SOLID WEDGE. 11 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.