NSN 4820-01-107-1843 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-107-1843. Manufacturer of record part number: 321579P1.
Also searched as4820-01-107-1843 ·
4820011071843 ·
NIIN 011071843 ·
01-107-1843 ·
FSC 4820 Valves, Nonpowered · CAGE 62228 · 321579P1
Nearby stock numbers← 4820-01-107-1810 Disk
·
4820-01-107-1879 Parts Kit, Diaphragm Replacement →
4820-01-107-1843 — Valves, Nonpowered
Features
Valve,expansion — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc
Identification
NSN: 4820-01-107-1843
NIIN: 011071843
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 321579P1
Manufacturer: Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc
General Description
The Valve,expansion, cataloged under National Stock Number 4820-01-107-1843, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
Catalog Facts
Item Name
Valve,expansion
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Manufacturers
Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc (CAGE 62228)
Technical Specifications
Parameter
Value
NSN
4820-01-107-1843
Primary Part Number
321579P1
Item Name
Valve,expansion
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc
Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc (USA)
Reference documents
Reference
Meaning
321579P1
3/9Design control — primary reference
Meggitt Defense Systems, Inc. Dba Meggitt Western Design
321579P1
5/9Secondary reference
Howden Fluid Systems
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 4820-01-107-1843?
NSN 4820-01-107-1843 is a Valve,expansion, manufactured by Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-107-1843?
NSN 4820-01-107-1843 has 1 manufacturer part number on file: 321579P1 (Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc).
Is NSN 4820-01-107-1843 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.