NSN 1660-01-623-1538 · NIIN 016231538 · Part number 4421915-201
B/e Aerospace, Inc. Dba Interturbine Div Oxygen & PSU Systems · FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories · CAGE 16827
Government record, cited
NSN 1660-01-623-1538 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-623-1538. Manufacturer of record part number: 4421915-201.
Also searched as1660-01-623-1538 ·
1660016231538 ·
NIIN 016231538 ·
01-623-1538 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 16827 · 4421915-201
Manufacturer of record: B/e Aerospace, Inc. Dba Interturbine Div Oxygen & PSU Systems
Identification
NSN: 1660-01-623-1538
NIIN: 016231538
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
Primary part number: 4421915-201
Manufacturer: B/e Aerospace, Inc. Dba Interturbine Div Oxygen & PSU Systems
General Description
The Regulator,oxygen,demand, cataloged under National Stock Number 1660-01-623-1538, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. The manufacturer of record is B/e Aerospace, Inc. Dba Interturbine Div Oxygen & PSU Systems. 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
1660-01-623-1538
Primary Part Number
4421915-201
Item Name
Regulator,oxygen,demand
FSC / FSG
1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Manufacturer
B/e Aerospace, Inc. Dba Interturbine Div Oxygen & PSU Systems
B/e Aerospace, Inc. Dba Interturbine Div Oxygen & PSU Systems (USA)
No interchangeability data on file.
Other items in FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1660-00-006-4472
FLANGE,VALVE BODY
1660-00-009-5646
ADAPTER ASSEMBLY,BELLOWS
1660-00-019-8389
1660-00-019-8389 · Item name not on file
1660-00-019-8399
1660-00-019-8399 · Item name not on file
1660-00-031-5285
1660-00-031-5285 · Item name not on file
1660-00-302-4390
PISTON,REGULATING V
1660-00-441-0575
PISTON
1660-01-601-0729
ETHERNET SWITCH
Frequently Asked Questions
What is NSN 1660-01-623-1538?
NSN 1660-01-623-1538 is a Regulator,oxygen,demand, manufactured by B/e Aerospace, Inc. Dba Interturbine Div Oxygen & PSU Systems, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
What part numbers are listed for NSN 1660-01-623-1538?
NSN 1660-01-623-1538 has 1 manufacturer part number on file: 4421915-201 (B/e Aerospace, Inc. Dba Interturbine Div Oxygen & PSU Systems).
What are the specifications of 4421915-201?
Key specifications for 4421915-201: Part Name Assigned by Controlling Agency: REGULATOR,OXYGEN,DEMAND. 0 specifications are documented in the U.S. Government catalog.
Is NSN 1660-01-623-1538 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.