The Disk,valve, cataloged under National Stock Number 4820-01-201-7802, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Leslie Controls, Inc. Dba Leslie Controls Inc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-201-7802 |
| Primary Part Number | 43155 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Leslie Controls, Inc. Dba Leslie Controls Inc |
| Status | ACTIVE |
| Shank Diameter | 0.625 INCHES NOMINAL IN |
| Flange Seat to Disk End Height | 12.625 INCHES NOMINAL IN |
| Style Designator | POPPET |
| Tip Diameter | 0.570 INCHES NOMINAL IN |
| Seat Angle | 81.0 DEGREES NOMINAL |
| Under Flange Height | 4.219 INCHES NOMINAL IN |
| 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 |
|---|---|
| N431550058 | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| 14503N PIECE 6 | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| 43155 PRIMARY | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| 14503N | D/9 Drawing number reference only Leslie Controls, Inc. Dba Leslie Controls Inc |
NSN 4820-01-201-7802 is a Disk,valve, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-201-7802 has 3 manufacturer part numbers on file: N431550058 (Leslie Controls, Inc. Dba Leslie Controls Inc), 14503N PIECE 6 (Leslie Controls, Inc. Dba Leslie Controls Inc), 43155 (Leslie Controls, Inc. Dba Leslie Controls Inc).
Key specifications for 43155: Shank Diameter: 0.625 INCHES NOMINAL IN; Flange Seat to Disk End Height: 12.625 INCHES NOMINAL IN; Overall Height: 16.844 INCHES NOMINAL IN; Style Designator: POPPET. 7 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.