The Cock,poppet Drain, cataloged under National Stock Number 4820-00-075-5904, 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14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-075-5904 |
| Item Name | Cock,poppet Drain |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Flange Shape | ROUND FIRST END |
| Flange Face Design | PLAIN FIRST END |
| Bolt Circle Nominal Diameter | 2.438 INCHES FIRST END IN |
| Style Designator | ANGLE |
| Bolt Hole Nominal Diameter | 0.200 INCHES FIRST END IN |
| Nominal Outside Diameter | 2.940 INCHES FIRST END IN |
| Bolt Hole Quantity | 8 FIRST END |
| Surface Treatment | ANODIZE |
| Material | STEEL FLOW CONTROL DEVICE |
| Material | ALUMINUM BODY |
| Material | RUBBER SYNTHETIC SEAT |
| Valve Operation Method | MANUAL |
| Nominal Thickness | 0.100 INCHES FIRST END 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 |
|---|---|
| 20D100 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-00-075-5904 is a Cock,poppet Drain, classified under FSC 4820, Valves, Nonpowered. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6740-00-435-3535. Verify interchangeability with system specifications before substitution.
Key specifications for 4820-00-075-5904: Flow Control Device: DISK; Flange Shape: ROUND FIRST END; Flange Face Design: PLAIN FIRST END; Bolt Circle Nominal Diameter: 2.438 INCHES FIRST 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.