National Stock Number
1660-01-330-9544
National Stock Number (NSN) 1660-01-330-9544, or NIIN 013309544, (regulator,oxygen,barometric demand) was assigned December 12, 1990 in the Federal Logistics Information System (FLIS). NIIN 013309544 was cancelled on December 2, 2018, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Aug 01, 2020, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 26724. [A REGULATOR DESIGNED TO DELIVER BREATHING OXYGEN IN AMOUNTS AUTOMATICALLY ADJUSTED IN ACCORDANCE WITH COMPLETE ALTITUDE REQUIREMENTS (0 TO HIGHEST MANNED AIRCRAFT ALTITUDE) WHEN THE USER INHALES. SEE ALSO REGULATOR (1), OXYGEN, DEMAND.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1660013309544 does not contain precious metals.
This information was last updated on Jul 01, 2025.