The Valve,gate, cataloged under National Stock Number 4820-00-931-7791, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-931-7791 |
| Item Name | Valve,gate |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 0.125 INCHES IN |
| Maximum Operating Temp and Media for Which Designed | 200.0 FAHRENHEIT OXYGEN, GASEOUS DEGF |
| Operating Pressure and Type | 200.0 POUNDS PER SQUARE INCH (PSI) OXYGEN MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS |
| Stem Type | RISING |
| Criticality Code Justification | FEAT |
| Features Provided | BONNET PACKING |
| Nominal Thread Size | 0.125 INCHES IN |
| Bonnet Attachment Method | THREADED |
| Thread Quantity Per Inch | 27 |
| Material | COPPER ALLOY BODY |
| Material | COPPER ALLOY STEM |
| Material | COPPER ALLOY SEAT |
| Material | COPPER ALLOY AND PLASTIC POLYTETRAFLUOROETHYLENE DISK |
| 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 | Y |
| Reference | Meaning |
|---|---|
| P181-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-00-931-7791 is a Valve,gate, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-00-931-7791: Nominal Pipe Size Accommodated: 0.125 INCHES IN; Maximum Operating Temp and Media for Which Designed: 200.0 FAHRENHEIT OXYGEN, GASEOUS DEGF; Operating Pressure and Type: 200.0 POUNDS PER SQUARE INCH (PSI) OXYGEN MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS; Stem Type: RISING. 15 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.