The Valve Assembly, cataloged under National Stock Number 4820-01-643-1763, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Bird-Johnson Propeller Company, Llc. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Valve Assembly |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Bird-Johnson Propeller Company, Llc (CAGE 07309) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-643-1763 |
| Primary Part Number | 617249005 FIND NO. 2 |
| Item Name | Valve Assembly |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Bird-Johnson Propeller Company, Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 617249005 FIND NO. 2 | Bird-Johnson Propeller Company, Llc (USA) |
| 6172P90022 FIND NO.16 | Bird-Johnson Propeller Company, Llc (USA) |
| P-3-4-22 | Bird-Johnson Propeller Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| 208782 ASSEMBLY 208782-01C | 5/2 Secondary reference U.S. Government activity |
| 208782-01C | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-643-1763 is a Valve Assembly, manufactured by Bird-Johnson Propeller Company, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-643-1763 has 3 manufacturer part numbers on file: 617249005 FIND NO. 2 (Bird-Johnson Propeller Company, Llc), 6172P90022 FIND NO.16 (Bird-Johnson Propeller Company, Llc), P-3-4-22 (Bird-Johnson Propeller Company, Llc).
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.