NSN 1660-01-437-1189 · NIIN 014371189 · Part number 51-09-540
Scott Specialty Gases Inc · FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories · CAGE 54262
Government record, cited
NSN 1660-01-437-1189 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-437-1189. Manufacturer of record part number: 51-09-540.
Also searched as1660-01-437-1189 ·
1660014371189 ·
NIIN 014371189 ·
01-437-1189 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 54262 · 51-09-540
Nearby stock numbers← 1660-01-437-0316 Training Unit, Soft Pack
·
1660-01-437-1211 Manifold, Oxygen, Aircraft →
Features
Regulator,oxygen,barometric Cont — FSC 1660
Flow Indicator: INCLUDED
Pressure Gage: INCLUDED
1 manufacturer part number on file
Manufacturer of record: Scott Specialty Gases Inc
Identification
NSN: 1660-01-437-1189
NIIN: 014371189
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
Primary part number: 51-09-540
Manufacturer: Scott Specialty Gases Inc
General Description
The Regulator,oxygen,barometric Cont, cataloged under National Stock Number 1660-01-437-1189, 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 Scott Specialty Gases Inc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 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
1660-01-437-1189
Primary Part Number
51-09-540
Item Name
Regulator,oxygen,barometric Cont
FSC / FSG
1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
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 1660-01-437-1189?
NSN 1660-01-437-1189 is a Regulator,oxygen,barometric Cont, manufactured by Scott Specialty Gases Inc, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
What part numbers are listed for NSN 1660-01-437-1189?
NSN 1660-01-437-1189 has 1 manufacturer part number on file: 51-09-540 (Scott Specialty Gases Inc).
What are the specifications of 51-09-540?
Key specifications for 51-09-540: Flow Indicator: INCLUDED; Pressure Gage: INCLUDED; End Item Identification: SPECIAL TOOLS AND SUPPORT EQUIP. 2 specifications are documented in the U.S. Government catalog.
Is NSN 1660-01-437-1189 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.