The Cock,drain, cataloged under National Stock Number 4820-01-186-2267, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-186-2267 |
| Item Name | Cock,drain |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flow Control Device | PLUG |
| Nominal Thread Size | 0.125 INCHES FIRST END IN |
| Material | COPPER ALLOY BODY |
| Thread Series Designator | NPT FIRST END |
| 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 |
|---|---|
| N-104-1-E PIECE 27 | 5/9 Secondary reference Dresser Industries Inc Masoneilan North American Opns Dresser Valve and Controls Div |
| 971829-1-400 | 3/9 Design control — primary reference Dresser Industries Inc Masoneilan North American Opns Dresser Valve and Controls Div |
| N10411CPC27 | C/1 Advisory reference — outside the item-of-supply concept Dresser Industries Inc Masoneilan North American Opns Dresser Valve and Controls Div |
| N-1041-1E | D/9 Drawing number reference only Dresser Industries Inc Masoneilan North American Opns Dresser Valve and Controls Div |
NSN 4820-01-186-2267 is a Cock,drain, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-186-2267: Flow Control Device: PLUG; Nominal Thread Size: 0.125 INCHES FIRST END IN; Material: COPPER ALLOY BODY; Thread Series Designator: NPT FIRST END. 4 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.