The Seat,valve, cataloged under National Stock Number 4820-01-574-8586, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dante Valve Company. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-574-8586 |
| Primary Part Number | B8014 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Dante Valve Company |
| Status | ACTIVE |
| Material Document and Classification | MONEL/NYLON;QQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE SEAT |
| Material | NICKEL ALLOY SEAT |
| 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 |
|---|---|
| B8014 PRIMARY | Dante Valve Company (USA) |
| D50-0016 ITEM 4 | Dante Valve Company (USA) |
| Reference | Meaning |
|---|---|
| D50-0016 ITEM 4 | 5/9 Secondary reference Danco Valve Company |
| B8014 | 3/9 Design control — primary reference Danco Valve Company |
NSN 4820-01-574-8586 is a Seat,valve, manufactured by Dante Valve Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-574-8586 has 2 manufacturer part numbers on file: B8014 (Dante Valve Company), D50-0016 ITEM 4 (Dante Valve Company).
Key specifications for B8014: Material Document and Classification: MONEL/NYLON;QQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE SEAT; Part Name Assigned by Controlling Agency: SEAT; End Item Identification: VALVE, ANGLE RELIEF D50-0016; Material: NICKEL ALLOY SEAT. 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.