NSN 1660-99-133-7851, 1660991337851
CONCENTRATOR,OXYGEN,AIRCRAFT

Federal Supply Classification: FSC 1660 - Aircraft Air Conditioning, Heating, and Pressurizing Equipment
National Item Identification Number: NIIN 991337851
Codification Country: United Kingdom
Item Name Code: INC 52896
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 1660-99-133-7851

National Stock Number (NSN) 1660-99-133-7851, or NIIN 991337851, (concentrator,oxygen,aircraft) has an unknown assigned date. This NSN does not replace any other NSNs.

There are no manufacturer part numbers associated to this NSN.

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

This NSN is assigned to Item Name Code (INC) 52896. [AN ITEM DESIGNED TO DELIVER AN ENRICHED OXYGEN GASEOUS MIXTURE TO THE PILOT(S) TO PROTECT THEM FROM ALTITUDE, HYPOXAEMIA, CHEMICAL POLLUTIONS (SMOKES), AND ACCELERATIONS.].

This information was last updated on Jan 07, 2026.