The Plug,rotary,valve, cataloged under National Stock Number 4820-01-190-1093, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-190-1093 |
| Item Name | Plug,rotary,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Port Diameter | 0.438 INCHES NOMINAL IN |
| Port Shape | ROUND |
| Surface Treatment | CHROMATE |
| Material | STEEL |
| Plug Diameter | 1.625 INCHES NOMINAL IN |
| 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 |
|---|---|
| 8165B | 3/9 Design control — primary reference U.S. Government activity |
| 8165B | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| 310001AV1 | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| 310001AV1 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 310001AV1 | 5/9 Secondary reference U.S. Government activity |
| 203506 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 8165B | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
NSN 4820-01-190-1093 is a Plug,rotary,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-190-1093: Port Diameter: 0.438 INCHES NOMINAL IN; Port Shape: ROUND; Special Features: KEYWAY STEM ACCOMODATION;TWO UNTHREADED HOLES DRILLED PARALLEL W/ BORE,0.281 IN. DP IN; Surface Treatment: CHROMATE. 5 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.