The Piston,seat Assy, cataloged under National Stock Number 4820-01-067-7597, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Rogerson Aircraft Equipment Group. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Piston,seat Assy |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Rogerson Aircraft Equipment Group (CAGE 04192) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-067-7597 |
| Primary Part Number | 28119-1 |
| Item Name | Piston,seat Assy |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Rogerson Aircraft Equipment Group |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 28119-1 PRIMARY | Rogerson Aircraft Equipment Group (USA) |
NSN 4820-01-067-7597 is a Piston,seat Assy, manufactured by Rogerson Aircraft Equipment Group, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-067-7597 has 1 manufacturer part number on file: 28119-1 (Rogerson Aircraft Equipment Group).
1 possible match (shared part number, not a government interchangeability claim): 5985-01-321-3844. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 4820-01-067-7597 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.