The Seat,valve, cataloged under National Stock Number 4820-01-124-7786, 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 9 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-124-7786 |
| Primary Part Number | 346486 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Leslie Controls, Inc. Dba Leslie Controls Inc |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.155 INCHES NOMINAL IN |
| Flange Diameter | 3.990 INCHES MINIMUM AND 3.995 INCHES MAXIMUM IN |
| Body Outside Diameter | 3.677 INCHES MINIMUM AND 3.682 INCHES MAXIMUM IN |
| Criticality Code Justification | FEAT |
| Style Designator | PLAIN FLANGED |
| Body Inside Diameter | 2.500 INCHES NOMINAL IN |
| Under Flange Height | 0.350 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE BODY |
| Seating Surface Shape | FLAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 346486 PRIMARY | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| 298-00-204AY-CL | C/1 Advisory reference — outside the item-of-supply concept Leslie Controls, Inc. Dba Leslie Controls Inc |
| 298-00-204AY-CL2 1/2IN PC-14 | 5/9 Secondary reference Circor Intl Inc |
| 298-00-204 | D/9 Drawing number reference only Circor Intl Inc |
NSN 4820-01-124-7786 is a Seat,valve, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-124-7786 has 1 manufacturer part number on file: 346486 (Leslie Controls, Inc. Dba Leslie Controls Inc).
Key specifications for 346486: Flange Seat to Disk End Height: 0.155 INCHES NOMINAL IN; Flange Diameter: 3.990 INCHES MINIMUM AND 3.995 INCHES MAXIMUM IN; Body Outside Diameter: 3.677 INCHES MINIMUM AND 3.682 INCHES MAXIMUM IN; Criticality Code Justification: FEAT. 9 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.