NSN 4820-01-433-4903 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-433-4903. Manufacturer of record part number: MM0122.
Manufacturer of record: Avl Scientific Corporation
Identification
NSN: 4820-01-433-4903
NIIN: 014334903
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: MM0122
Manufacturer: Avl Scientific Corporation
General Description
The Valve,pressure Equalizing,gaseou, cataloged under National Stock Number 4820-01-433-4903, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Avl Scientific Corporation. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
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
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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 4820-01-433-4903?
NSN 4820-01-433-4903 is a Valve,pressure Equalizing,gaseou, manufactured by Avl Scientific Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-433-4903?
NSN 4820-01-433-4903 has 1 manufacturer part number on file: MM0122 (Avl Scientific Corporation).
What are the specifications of MM0122?
Key specifications for MM0122: Special Features: GAS MIXER UNIT; C,O PRESSURE SWITCH; P/N EZ0084; OVER PRESSURE VALVE; P/N BP1100; SOLENOID VALIVE; P/N MM0088; End Item Identification: BLOOD,GAS ANALYZER; MODEL AVL 99X. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-433-4903 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.