The Base,flapper Valve, cataloged under National Stock Number 4820-00-008-3759, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-00-008-3759 |
| Item Name | Base,flapper Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY PER QQ-A-225/2 ALLOY 3003,4.480 IN. LG,4.310 IN. W,1.400 IN. H,TO ASSEMBLE WITH PART NO. 14-52505 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 |
|---|---|
| 14-52513-1 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
| 14-52513-1 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
NSN 4820-00-008-3759 is a Base,flapper Valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-00-008-3759: General Characteristics Item Description: ALUMINUM ALLOY PER QQ-A-225/2 ALLOY 3003,4.480 IN. LG,4.310 IN. W,1.400 IN. H,TO ASSEMBLE WITH PART NO. 14-52505 IN. 1 specification is 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.