NSN 4820-01-574-8640 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-574-8640. Manufacturer of record part number: DG4V-3-20-MWH40.
Also searched as4820-01-574-8640 ·
4820015748640 ·
NIIN 015748640 ·
01-574-8640 ·
FSC 4820 Valves, Nonpowered · CAGE 09ME2 · DG4V-3-20-MWH40
Manufacturer of record: Aircraft Technical Development, Inc. Dba Aerocon Engineering Company
Identification
NSN: 4820-01-574-8640
NIIN: 015748640
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: DG4V-3-20-MWH40
Manufacturer: Aircraft Technical Development, Inc. Dba Aerocon Engineering Company
General Description
The Valve,rotary,selector, cataloged under National Stock Number 4820-01-574-8640, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Aircraft Technical Development, Inc. Dba Aerocon Engineering Company. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-574-8640
Primary Part Number
DG4V-3-20-MWH40
Item Name
Valve,rotary,selector
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Aircraft Technical Development, Inc. Dba Aerocon Engineering Company
Aircraft Technical Development, Inc. Dba Aerocon Engineering Company (USA)
No interchangeability data on file.
Other items in FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file
Frequently Asked Questions
What is NSN 4820-01-574-8640?
NSN 4820-01-574-8640 is a Valve,rotary,selector, manufactured by Aircraft Technical Development, Inc. Dba Aerocon Engineering Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-574-8640?
NSN 4820-01-574-8640 has 1 manufacturer part number on file: DG4V-3-20-MWH40 (Aircraft Technical Development, Inc. Dba Aerocon Engineering Company).
What are the specifications of DG4V-3-20-MWH40?
Key specifications for DG4V-3-20-MWH40: End Item Identification: AC25-A330-1125-301 ONBOARD AIRSTAIRS; 1423-1034-113 HYDRAULIC SYSTEM. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-574-8640 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.