NSN 1660-01-540-6573 · NIIN 015406573 · Part number 957.12.16.501
Pilatus Aircraft Ltd · FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories · CAGE S4080
Government record, cited
NSN 1660-01-540-6573 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-540-6573. Manufacturer of record part number: 957.12.16.501.
Also searched as1660-01-540-6573 ·
1660015406573 ·
NIIN 015406573 ·
01-540-6573 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE S4080 · 957.12.16.501 · 3260042-0201
Nearby stock numbers← 1660-01-540-6453 Insulation Blanket, Thermal, Aircr
·
1660-01-540-6876 Seal Assembly, Turbine, Cooling, Ai →
Features
Regulator,oxygen,diluter Demand — FSC 1660
1 manufacturer part number on file
Manufacturer of record: Pilatus Aircraft Ltd
Identification
NSN: 1660-01-540-6573
NIIN: 015406573
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
Primary part number: 957.12.16.501
Manufacturer: Pilatus Aircraft Ltd
General Description
The Regulator,oxygen,diluter Demand, cataloged under National Stock Number 1660-01-540-6573, 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 Pilatus Aircraft Ltd. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
Technical Specifications
Parameter
Value
NSN
1660-01-540-6573
Primary Part Number
957.12.16.501
Item Name
Regulator,oxygen,diluter Demand
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 1660-01-540-6573?
NSN 1660-01-540-6573 is a Regulator,oxygen,diluter Demand, manufactured by Pilatus Aircraft Ltd, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
What part numbers are listed for NSN 1660-01-540-6573?
NSN 1660-01-540-6573 has 1 manufacturer part number on file: 957.12.16.501 (Pilatus Aircraft Ltd).
What are the specifications of 957.12.16.501?
Key specifications for 957.12.16.501: End Item Identification: ON BOARD OXYGEN GENERATING SYSTEMS (OBOGS) MILITARY AIRCRAFT. 0 specifications are documented in the U.S. Government catalog.
Is NSN 1660-01-540-6573 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.
What is the DEMIL code for NSN 1660-01-540-6573?
NSN 1660-01-540-6573 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.