The Valve,gate, cataloged under National Stock Number 4820-01-668-2891, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Marine Electric Systems Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Valve,gate |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Marine Electric Systems Inc (CAGE 00062) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-668-2891 |
| Primary Part Number | 204509 |
| Item Name | Valve,gate |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Marine Electric Systems Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 402065ITEM1 | Marine Electric Systems Inc (USA) |
| 204509 PRIMARY | Marine Electric Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 402065 | D/9 Drawing number reference only Marine Electric Systems Inc |
NSN 4820-01-668-2891 is a Valve,gate, manufactured by Marine Electric Systems Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-668-2891 has 2 manufacturer part numbers on file: 402065ITEM1 (Marine Electric Systems Inc), 204509 (Marine Electric Systems Inc).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-681-3423, 5935-01-681-5775. 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.
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.