The Stem,fluid Valve, cataloged under National Stock Number 4820-01-504-1990, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is B N L Industries Inc. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-504-1990 |
| Primary Part Number | HBV-A2-06-0006-05 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | B N L Industries Inc |
| Status | ACTIVE |
| Valve Type for Which Designed | BALL |
| Valve Model Number for Which Designed | HBV-A2-06-0006 |
| Valve Size for Which Designed | 0.750 INCHES IN |
| Material | COPPER ALLOY AND NICKEL ALLOY |
| 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 |
|---|---|
| HBV-A2-06-0006-05 PRIMARY | B N L Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| HBV-A2-06-0006 | D/9 Drawing number reference only B N L Industries Inc |
NSN 4820-01-504-1990 is a Stem,fluid Valve, manufactured by B N L Industries Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-504-1990 has 1 manufacturer part number on file: HBV-A2-06-0006-05 (B N L Industries Inc).
Key specifications for HBV-A2-06-0006-05: Valve Type for Which Designed: BALL; Valve Model Number for Which Designed: HBV-A2-06-0006; Valve Size for Which Designed: 0.750 INCHES IN; End Item Identification: PART USED ON P/N HBV-A2-06-0006 NSN 4820-01-504-1965. 4 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.