The Valve,plug, cataloged under National Stock Number 4820-00-477-7250, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-00-477-7250 |
| Item Name | Valve,plug |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Connection Style | PLAIN,OPTIONAL END(PIPE) ALL ENDSPLAIN,OPTIONAL END(PIPE) ALL ENDS |
| Connection Type | THREADED INTERNAL PIPE ALL ENDSTHREADED INTERNAL PIPE ALL ENDS |
| Flow Style | THREE-WAY TWO PORT 180 DEGREE PLUG TURNTHREE-WAY TWO PORT 180 DEGREE PLUG TURN |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Direction | RIGHT-HAND ALL ENDSRIGHT-HAND ALL ENDS |
| Nominal Thread Size | 1.000 INCHES ALL ENDS1.000 INCHES ALL ENDS IN |
| Media for Which Designed | STEAM SINGLE RESPONSE |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | NPT ALL ENDS |
| Valve Operation Method | MANUALMANUAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 800E1573 | 3/9 Design control — primary reference Kersey / American Lafrance a Div of Figgie International Inc |
NSN 4820-00-477-7250 is a Valve,plug, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-00-477-7250: Connection Style: PLAIN,OPTIONAL END(PIPE) ALL ENDSPLAIN,OPTIONAL END(PIPE) ALL ENDS; Connection Type: THREADED INTERNAL PIPE ALL ENDSTHREADED INTERNAL PIPE ALL ENDS; Flow Style: THREE-WAY TWO PORT 180 DEGREE PLUG TURNTHREE-WAY TWO PORT 180 DEGREE PLUG TURN; Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 10 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.