NSN 1660-01-708-8797, 1660017088797
REGULATOR,OXYGEN,DEMAND

Federal Supply Classification: FSC 1660 - Aircraft Air Conditioning, Heating, and Pressurizing Equipment
National Item Identification Number: NIIN 017088797
Codification Country: United States
Item Name Code: INC 07798
Criticality: (S) The item is a non-aviation Critical Safety Item (CSI) whose failure will result in serious damage to equipment or serious injury or death to personnel.
Hazardous Material Indicator Code: (N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.

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DLMS^® Summary

National Stock Number 1660-01-708-8797

National Stock Number (NSN) 1660-01-708-8797, or NIIN 017088797, (regulator,oxygen,demand) was assigned April 28, 2023 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 4 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over 5 years.

This NSN is assigned to Item Name Code (INC) 07798. [A REGULATOR DESIGNED TO DELIVER PURE BREATHING OXYGEN AUTOMATICALLY WHEN THE USER INHALES, WITHIN A MAXIMUM OPERATING ALTITUDE OF 35,000 FEET (10,668 M).]. The item is a non-aviation Critical Safety Item (CSI) whose failure will result in serious damage to equipment or serious injury or death to personnel. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1660017088797 does not contain precious metals.

This information was last updated on Aug 01, 2025.

Technical Characteristics

EMERGENCY OXYGEN CONTROL TYPE: (AMXL) VALVE
CRITICALITY CODE JUSTIFICATION: (CRTL) FEAT
FLOW INDICATOR: (AMWQ) INCLUDED
INSTALLATION DESIGN: (AMQY) NONPORTABLE
PART NAME ASSIGNED BY CONTROLLING AGENCY: (CXCY) REGULATOR,02,NPT,4500 PSI
OVERALL DEPTH: (ABFY) 5.500 INCHES NOMINAL
OVERALL HEIGHT: (ABKW) 4.620 INCHES NOMINAL
OVERALL WIDTH: (ABMK) 5.250 INCHES NOMINAL
PRESSURE GAGE: (AMWP) INCLUDED
SPECIAL FEATURES: (FEAT) THIS ITEM SPECIFIED IN THIS DRAWING IS A CRITICAL SAFETY ITEM(CSI)ANY DEPARTURE FROM THE REQUIREMENTS SPECIFIED OR REFERENCED HEREIN COULD RESULT IN LOSS OF LIFE,SERIOUS PERSONNEL INJURY,THE LOSS OF A VITAL COMBAT SYSTEM AND/OR THE LOSS OF AIRCRAFT,AS SUCH THIS ITEM HAS BEEN DESIGNATED AS A CRITICAL SAFETY ITEM(CSI)ANY DEVIATIONS FROM THE SPECIFICATIONS SPECIFIED HEREIN WITHOUT WRITTEN APPROVAL FROM THE NAVAL AIR SYSTEM COMMAND SUPPORT EQUIPMENT AND AIRCRAFT LAUNCH AND RECOVERY EQUIPMENT DEPARTMENT IS STRICTLY PROHIBITED;MATERAIL BODY:BRASS;NHA 2013661;