The Adapter,air Valve, cataloged under National Stock Number 4820-00-478-5819, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Control Flow, Inc. Dba Control Flow Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-478-5819 |
| Primary Part Number | A302057 |
| Item Name | Adapter,air Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Control Flow, Inc. Dba Control Flow Inc |
| Status | ACTIVE |
| General Characteristics Item Description | 1.125 IN. HEXAGON STOCK,0.250-18 NPT ON ONE END,THRU HOLE,1 O-RING ETHYLEBE PROPYLENE P/N MS24690 IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| A302057 PRIMARY | Control Flow, Inc. Dba Control Flow Inc (USA) |
| Reference | Meaning |
|---|---|
| A302057 | 5/9 Secondary reference Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division |
| B1005-012 | 5/9 Secondary reference Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division |
NSN 4820-00-478-5819 is a Adapter,air Valve, manufactured by Control Flow, Inc. Dba Control Flow Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-478-5819 has 1 manufacturer part number on file: A302057 (Control Flow, Inc. Dba Control Flow Inc).
Key specifications for A302057: General Characteristics Item Description: 1.125 IN. HEXAGON STOCK,0.250-18 NPT ON ONE END,THRU HOLE,1 O-RING ETHYLEBE PROPYLENE P/N MS24690 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.