The Disk,valve, cataloged under National Stock Number 4820-01-276-1500, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Flowserve Us, Inc. Dba Automax Actuators Div Flow Control Division. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-276-1500 |
| Primary Part Number | D20066 PIECE 4 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Flowserve Us, Inc. Dba Automax Actuators Div Flow Control Division |
| Status | ACTIVE |
| Pressure Rating | 600.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Taper Minor Diameter | 3.375 INCHES NOMINAL IN |
| Style Designator | SOLID WEDGE |
| Taper Major Diameter | 5.129 INCHES NOMINAL IN |
| Seat Angle | 45.0 DEGREES NOMINAL |
| Taper Length | 8.967 INCHES NOMINAL IN |
| Material | STEEL |
| 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 |
|---|---|
| D20066 PIECE 4 PRIMARY | Flowserve Us, Inc. Dba Automax Actuators Div Flow Control Division (USA) |
| Reference | Meaning |
|---|---|
| D20066 PIECE 4 | 5/9 Secondary reference U.S. Government activity |
| D20066 PIECE 00 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 4820-01-276-1500 is a Disk,valve, manufactured by Flowserve Us, Inc. Dba Automax Actuators Div Flow Control Division, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-276-1500 has 1 manufacturer part number on file: D20066 PIECE 4 (Flowserve Us, Inc. Dba Automax Actuators Div Flow Control Division).
Key specifications for D20066 PIECE 4: Overall Height: 10.188 INCHES NOMINAL IN; Pressure Rating: 600.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Taper Minor Diameter: 3.375 INCHES NOMINAL IN; Style Designator: SOLID WEDGE. 7 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.