The Poppet and Seat Ass, cataloged under National Stock Number 4820-00-407-3830, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Thomas Instrument, Incorporated. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Poppet and Seat Ass |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Thomas Instrument, Incorporated (CAGE 5H860) |
| Parameter | Value |
|---|---|
| NSN | 4820-00-407-3830 |
| Primary Part Number | 14051-3 |
| Item Name | Poppet and Seat Ass |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Thomas Instrument, Incorporated |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
NSN 4820-00-407-3830 is a Poppet and Seat Ass, manufactured by Thomas Instrument, Incorporated, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-407-3830 has 2 manufacturer part numbers on file: 14051-3 (Thomas Instrument, Incorporated), 87922-10 (Thomas Instrument, Incorporated).
1 possible match (shared part number, not a government interchangeability claim): 2840-01-542-5347. 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 4820-00-407-3830 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.