The Valve,drum Off Loading, cataloged under National Stock Number 4820-01-439-5351, 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4 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-439-5351 |
| Item Name | Valve,drum Off Loading |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| General Characteristics Item Description | W/SYNTHETIC RUBBER DIAPHRAGM;1.500 IN.OUTLET;CAPACITY IS 27.5 GPM AT 12 IN.MERCURY VACUUM;TYPICAL APPLICATION 55 GAL.FUEL DRUM. IN |
| Color | GREEN |
| Surface Treatment | ANODIZE |
| Material | ALUMINUM ALLOY |
| 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 |
|---|---|
| 65432H | 3/2 Design control — primary reference U.S. Government activity |
| 65432 | D/9 Drawing number reference only U.S. Government activity |
NSN 4820-01-439-5351 is a Valve,drum Off Loading, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-439-5351: Overall Height: 45.000 INCHES NOMINAL IN; General Characteristics Item Description: W/SYNTHETIC RUBBER DIAPHRAGM;1.500 IN.OUTLET;CAPACITY IS 27.5 GPM AT 12 IN.MERCURY VACUUM;TYPICAL APPLICATION 55 GAL.FUEL DRUM. IN; Overall Width: 7.250 INCHES NOMINAL IN; Color: GREEN. 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.