NSN 4820-01-030-0344 · NIIN 010300344 · Part number 990AS189
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 30003
Government record, cited
NSN 4820-01-030-0344 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-030-0344. Manufacturer of record part number: 990AS189.
Also searched as4820-01-030-0344 ·
4820010300344 ·
NIIN 010300344 ·
01-030-0344 ·
FSC 4820 Valves, Nonpowered · CAGE 30003 · 990AS189
Nearby stock numbers← 4820-01-030-0232 Valve, Back Pressure
·
4820-01-030-0386 Valve, Flow Control →
4820-01-030-0344 — Valves, Nonpowered
Features
Breather Valve — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
Identification
NSN: 4820-01-030-0344
NIIN: 010300344
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 990AS189
Manufacturer: Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
General Description
The Breather Valve, cataloged under National Stock Number 4820-01-030-0344, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Catalog Facts
Item Name
Breather Valve
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Manufacturers
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (CAGE 30003)
Technical Specifications
Parameter
Value
NSN
4820-01-030-0344
Primary Part Number
990AS189
Item Name
Breather Valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (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 4820-01-030-0344?
NSN 4820-01-030-0344 is a Breather Valve, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-030-0344?
NSN 4820-01-030-0344 has 1 manufacturer part number on file: 990AS189 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Is NSN 4820-01-030-0344 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.