The Valve,diaphragm,stop, cataloged under National Stock Number 4820-01-437-1058, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Advanced Specialty Gas Equipment. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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,diaphragm,stop |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Advanced Specialty Gas Equipment (CAGE 03LC6); Raytheon E-Systems, Inc (CAGE 33875) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-437-1058 |
| Primary Part Number | SG5461 |
| Item Name | Valve,diaphragm,stop |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Advanced Specialty Gas Equipment |
| 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 |
|---|---|
| SG5461 PRIMARY | Advanced Specialty Gas Equipment (USA) |
| BH-00004-002 | Raytheon E-Systems, Inc (USA) |
| Reference | Meaning |
|---|---|
| SG5461 | C/1 Advisory reference — outside the item-of-supply concept Union Carbide Corp Sub of Dow Co the |
| SG5461 | 5/9 Secondary reference Gas Technics of Ohio |
NSN 4820-01-437-1058 is a Valve,diaphragm,stop, manufactured by Advanced Specialty Gas Equipment, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-437-1058 has 2 manufacturer part numbers on file: SG5461 (Advanced Specialty Gas Equipment), BH-00004-002 (Raytheon E-Systems, Inc).
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.