The Cock,poppet Drain, cataloged under National Stock Number 4820-00-394-9642, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-394-9642 |
| Item Name | Cock,poppet Drain |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Connection Style | BEADED (HOSE) SECOND END |
| Connection Style | DOUBLE THREADED SECTION BOSS FITTING GASKET WITH LOCKNUT SEALING, BOSS FIRST END |
| Nominal Inside Diameter Hose Accommodated | 0.375 INCHES SECOND END IN |
| Connection Type | THREADED EXTERNAL BOSS FIRST END |
| Connection Type | UNTHREADED EXTERNAL HOSE SECOND END |
| Style Designator | ANGLE |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.750 INCHES FIRST END IN |
| Maximum Operating Temp | 420.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Media for Which Designed | OIL, LUBRICATING, DIESTER BASE SINGLE RESPONSE |
| Thread Class | 3A FIRST END A |
| Material | ALUMINUM OVERALL |
| Thread Series Designator | UNF 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 |
|---|---|
| 50D8 | 3/2 Design control — primary reference U.S. Government activity |
| 68B520063-101 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| 68B520063 | 5/9 Secondary reference The Boeing Company Div Defense |
NSN 4820-00-394-9642 is a Cock,poppet Drain, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-00-394-9642: Flow Control Device: POPPET; Connection Style: BEADED (HOSE) SECOND END; Connection Style: DOUBLE THREADED SECTION BOSS FITTING GASKET WITH LOCKNUT SEALING, BOSS FIRST END; Nominal Inside Diameter Hose Accommodated: 0.375 INCHES SECOND END IN. 14 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.