The Disk,valve, cataloged under National Stock Number 4820-01-057-9883, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is William Powell Company, the Dba Powell Valve Div the Starflo Corporation. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Disk,valve |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (CAGE 48422); Naval Sea Systems Command (CAGE 53711) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-057-9883 |
| Primary Part Number | 64269 PC-18 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | William Powell Company, the Dba Powell Valve Div the Starflo 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 |
|---|---|
| 64269 PC-18 PRIMARY | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
| 845-2181480PC18 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 2620-925X10PC18 | 3/2 Design control — primary reference U.S. Government activity |
| SS845-2181480 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4820-01-057-9883 is a Disk,valve, manufactured by William Powell Company, the Dba Powell Valve Div the Starflo Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-057-9883 has 2 manufacturer part numbers on file: 64269 PC-18 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation), 845-2181480PC18 (Naval Sea Systems Command).
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.