The Disk,valve, cataloged under National Stock Number 4820-01-514-6572, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Greno Industries, Inc. Dba Greno Industries Inc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-514-6572 |
| Primary Part Number | 3303 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Greno Industries, Inc. Dba Greno Industries Inc |
| Status | ACTIVE |
| Pressure Rating | 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| 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 |
|---|---|
| 3000 PART 2 | Greno Industries, Inc. Dba Greno Industries Inc (USA) |
| 3303 PRIMARY | Greno Industries, Inc. Dba Greno Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| 3000 | D/9 Drawing number reference only Greno Industries, Inc. Dba Greno Industries Inc |
NSN 4820-01-514-6572 is a Disk,valve, manufactured by Greno Industries, Inc. Dba Greno Industries Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-514-6572 has 2 manufacturer part numbers on file: 3000 PART 2 (Greno Industries, Inc. Dba Greno Industries Inc), 3303 (Greno Industries, Inc. Dba Greno Industries Inc).
Key specifications for 3303: Pressure Rating: 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; End Item Identification: 4820-01-514-6570 ANGLE RELIEF VALVE; Material: STEEL CORROSION RESISTING. 2 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.