The Disk,valve, cataloged under National Stock Number 4820-01-333-0264, 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 6 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-333-0264 |
| Primary Part Number | 2113965813900U2 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | William Powell Company, the Dba Powell Valve Div the Starflo Corporation |
| Status | ACTIVE |
| Shank Diameter | 1.994 INCHES NOMINAL IN |
| Flange Seat to Disk End Height | 3.312 INCHES NOMINAL IN |
| Outside Diameter | 3.216 INCHES NOMINAL IN |
| Inside Diameter | 1.250 INCHES NOMINAL IN |
| Media for Which Designed | WATER |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 2113965813900U2 PRIMARY | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
| Reference | Meaning |
|---|---|
| C-060658 PART 139658 | 5/9 Secondary reference William Powell Company, the Dba Powell Valve Div the Starflo Corporation |
| 139658 | 5/9 Secondary reference William Powell Company, the Dba Powell Valve Div the Starflo Corporation |
| 060658 | 5/9 Secondary reference William Powell Company, the Dba Powell Valve Div the Starflo Corporation |
NSN 4820-01-333-0264 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 4820-01-333-0264 has 1 manufacturer part number on file: 2113965813900U2 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation).
2 possible matches (shared part number, not a government interchangeability claim): 5305-01-336-5580, 7021-01-546-1532. Verify interchangeability with system specifications before substitution.
Key specifications for 2113965813900U2: Shank Diameter: 1.994 INCHES NOMINAL IN; Flange Seat to Disk End Height: 3.312 INCHES NOMINAL IN; Overall Height: 4.062 INCHES NOMINAL IN; Outside Diameter: 3.216 INCHES NOMINAL IN. 6 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.