National Stock Number
1660-00-804-9257
National Stock Number (NSN) 1660-00-804-9257, or NIIN 008049257, (regulator,oxygen,diluter demand) was assigned March 20, 1968 in the Federal Logistics Information System (FLIS). NIIN 008049257 was cancelled on April 30, 2010, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN replaces 1 stock number, 1660000719386.
There are 6 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. ISO Group has several sources of supply for 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) 07799. [A REGULATOR WHICH INCORPORATES A MECHANISM TO MIX AIR WITH OXYGEN UP TO PREDETERMINED ALTITUDES. AT THE PREDETERMINED ALTITUDE THE REGULATOR AUTOMATICALLY DELIVERS PURE OXYGEN.]. 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 1660008049257 does not contain precious metals.
This information was last updated on Aug 01, 2025.