The Disk,valve, cataloged under National Stock Number 4820-01-192-9811, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-192-9811 |
| Primary Part Number | 57512-T316 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | William Powell Company, the Dba Powell Valve Div the Starflo Corporation |
| Status | ACTIVE |
| Taper Minor Diameter | 1.000 INCHES NOMINAL IN |
| Style Designator | SOLID WEDGE |
| Taper Major Diameter | 2.562 INCHES NOMINAL IN |
| Seat Angle | 5.0 DEGREES NOMINAL |
| Taper Length | 8.312 INCHES NOMINAL IN |
| 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 |
|---|---|
| 57512-T316 PRIMARY | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
| Reference | Meaning |
|---|---|
| 57512 8IPS | 5/9 Secondary reference William Powell Company, the Dba Powell Valve Div the Starflo Corporation |
| 57512 | D/9 Drawing number reference only William Powell Company, the Dba Powell Valve Div the Starflo Corporation |
NSN 4820-01-192-9811 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 4820-01-192-9811 has 1 manufacturer part number on file: 57512-T316 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation).
Key specifications for 57512-T316: Overall Height: 9.125 INCHES NOMINAL IN; Taper Minor Diameter: 1.000 INCHES NOMINAL IN; Style Designator: SOLID WEDGE; Taper Major Diameter: 2.562 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.