The Disk and Seat Set,valve, cataloged under National Stock Number 4820-01-643-2951, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hansen Technologies Corporation. 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 | 4820-01-643-2951 |
| Primary Part Number | 50-1148 |
| Item Name | Disk and Seat Set,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hansen Technologies Corporation |
| 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 |
|---|---|
| 50-1148 PRIMARY | Hansen Technologies Corporation (USA) |
NSN 4820-01-643-2951 is a Disk and Seat Set,valve, manufactured by Hansen Technologies Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-643-2951 has 1 manufacturer part number on file: 50-1148 (Hansen Technologies Corporation).
Key specifications for 50-1148: Special Features: SEAT DISK ASSEMBLY INCLUDES SPRING, SEAT DISK HOLDER POLYTETRAFLUOROETHYLENE (PTFE), POLYTETRAFLUOROETHYLENE (PTFE) SEAT, AND BONNET GASKET.. 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.