The Disk,valve, cataloged under National Stock Number 4820-01-343-0809, 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. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-343-0809 |
| Primary Part Number | 502-16-20-004H-0C6B W TFN ST |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Leslie Controls, Inc. Dba Leslie Controls Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 502-16-20-004H-0C6B W TFN ST PRIMARY | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| 256978 ASSY ATB PC 14-16 | 3/1 Design control — primary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 502-16-20-004H-0C6B W TFN ST | 5/9 Secondary reference Circor Intl Inc |
| 2621-026-01 PC 14-16 | 5/9 Secondary reference Circor Intl Inc |
NSN 4820-01-343-0809 is a Disk,valve, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-343-0809 has 1 manufacturer part number on file: 502-16-20-004H-0C6B W TFN ST (Leslie Controls, Inc. Dba Leslie Controls Inc).
Key specifications for 502-16-20-004H-0C6B W TFN ST: End Item Identification: 1.50IPS BALL VALVE. 0 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.