The Disk,valve, cataloged under National Stock Number 4820-01-104-5268, 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. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-104-5268 |
| Primary Part Number | 67639 LINE 13 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | William Powell Company, the Dba Powell Valve Div the Starflo Corporation |
| Status | ACTIVE |
| Pressure Rating | 200.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Shoulder Height | 0.183 INCHES NOMINAL IN |
| Temp Rating | 500.0 FAHRENHEIT NOMINAL DEGF |
| Style Designator | PLUG |
| Seat Angle | 12.0 DEGREES NOMINAL |
| Nominal Thread Size | 0.562 INCHES IN |
| Media for Which Designed | GAS OR OIL OR WATER |
| Thread Class | 2B |
| Material | STEEL CORROSION RESISTING |
| Thread Series Designator | UNEF |
| 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 |
|---|---|
| 67639 LINE 13 PRIMARY | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
| Reference | Meaning |
|---|---|
| 67639 | D/9 Drawing number reference only William Powell Company, the Dba Powell Valve Div the Starflo Corporation |
NSN 4820-01-104-5268 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 4820-01-104-5268 has 1 manufacturer part number on file: 67639 LINE 13 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation).
Key specifications for 67639 LINE 13: Overall Height: 0.694 INCHES NOMINAL IN; Pressure Rating: 200.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Shoulder Height: 0.183 INCHES NOMINAL IN; Temp Rating: 500.0 FAHRENHEIT NOMINAL DEGF. 10 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.