The Valve,gate, cataloged under National Stock Number 4820-01-046-3985, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Marine Electric Systems Inc. Government technical data includes 7 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-046-3985 |
| Primary Part Number | 302638 |
| Item Name | Valve,gate |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Marine Electric Systems Inc |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 SALINITY CELL |
| Operating Pressure and Type | 400.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS |
| Connection Type | THREADED INTERNAL PIPE |
| Nominal Thread Size | 1.250 INCHES IN |
| Material | STEEL BODY |
| Thread Series Designator | NPT |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| 302638 PRIMARY | Marine Electric Systems Inc (USA) |
NSN 4820-01-046-3985 is a Valve,gate, manufactured by Marine Electric Systems Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-046-3985 has 1 manufacturer part number on file: 302638 (Marine Electric Systems Inc).
1 possible match (shared part number, not a government interchangeability claim): 5905-01-435-9983. Verify interchangeability with system specifications before substitution.
Key specifications for 302638: Furnished Items and Quantity: 1 SALINITY CELL; Operating Pressure and Type: 400.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS; Connection Type: THREADED INTERNAL PIPE; Nominal Thread Size: 1.250 INCHES IN. 7 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.