NSN 1660-01-689-7917 · NIIN 016897917 · Part number 20-4500-7000
Tronair, Inc. Div Tronair · FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories · CAGE 59603
Government record, cited
NSN 1660-01-689-7917 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-689-7917. Manufacturer of record part number: 20-4500-7000.
Also searched as1660-01-689-7917 ·
1660016897917 ·
NIIN 016897917 ·
01-689-7917 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 59603 · 20-4500-7000 · 9900000643
Nearby stock numbers← 1660-01-689-7774 Duct Assembly, Air Conditioning-H
·
1660-01-689-8950 Duct Assembly, Air Conditioning-H →
Features
Regulator,oxygen,barometric Cont — FSC 1660
Lighted Panel: NOT INCLUDED
Pressure Gage: INCLUDED
Installation Design: PORTABLE
2 manufacturer part numbers on file
Manufacturer of record: Tronair, Inc. Div Tronair
Identification
NSN: 1660-01-689-7917
NIIN: 016897917
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
Primary part number: 20-4500-7000
Manufacturer: Tronair, Inc. Div Tronair
General Description
The Regulator,oxygen,barometric Cont, cataloged under National Stock Number 1660-01-689-7917, 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 Tronair, Inc. Div Tronair. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
1660-01-689-7917
Primary Part Number
20-4500-7000
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.
1660-00-001-1693
DUCT ASSEMBLY,AIR CONDITIONING-H
1660-00-001-1754
BAFFLE,AIR
1660-00-001-2491
CAGE,BYPASS VALVE
1660-00-001-2493
1660-00-001-2493 · Item name not on file
1660-00-001-2496
CONTROL BOX,ELECTRICAL-ELECTRONI
1660-00-001-2497
1660-00-001-2497 · Item name not on file
1660-00-001-4130
1660-00-001-4130 · Item name not on file
1660-00-001-4479
CONTROLLER,AIR PRESSURE,AIRCRAFT
Frequently Asked Questions
What is NSN 1660-01-689-7917?
NSN 1660-01-689-7917 is a Regulator,oxygen,barometric Cont, manufactured by Tronair, Inc. Div Tronair, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
What part numbers are listed for NSN 1660-01-689-7917?
NSN 1660-01-689-7917 has 2 manufacturer part numbers on file: 9900000643 (Pilatus Aircraft Ltd), 20-4500-7000 (Tronair, Inc. Div Tronair).
What are the specifications of 20-4500-7000?
Key specifications for 20-4500-7000: Overall Height: 19.0 INCHES NOMINAL IN; Overall Width: 16.0 INCHES NOMINAL IN; Lighted Panel: NOT INCLUDED; Pressure Gage: INCLUDED. 3 specifications are documented in the U.S. Government catalog.
Is NSN 1660-01-689-7917 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.