The Disk,valve, cataloged under National Stock Number 4820-01-341-8683, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Roper Industries Inc Roper Pump Co Div. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-341-8683 |
| Primary Part Number | D16-57 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Roper Industries Inc Roper Pump Co Div |
| Status | ACTIVE |
| Pressure Rating | 300.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Material | STEEL |
| 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 |
|---|---|
| D16-57 PRIMARY | Roper Industries Inc Roper Pump Co Div (USA) |
NSN 4820-01-341-8683 is a Disk,valve, manufactured by Roper Industries Inc Roper Pump Co Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-341-8683 has 1 manufacturer part number on file: D16-57 (Roper Industries Inc Roper Pump Co Div).
Key specifications for D16-57: Pressure Rating: 300.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; End Item Identification: 1925-01-247-7110; Material: STEEL. 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.