National Stock Number
4220-01-241-2109
National Stock Number (NSN) 4220-01-241-2109, or NIIN 012412109, (regulator,air pressure,demand) was assigned September 23, 1986 in the Federal Logistics Information System (FLIS). NIIN 012412109 was cancelled on April 2, 2001, 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 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) 28020. [INC 28020 CANCELLED/REPLACED BY ,INC 67375, FIIG T164-H, APP-KEY HA ,ON 061603 ~A REGULATOR DESIGNED TO DELIVER AIR AUTOMATICALLY WHEN THE USER INHALES. IT IS INTENDED FOR USE WITH PRESSURIZED AIR. EXCLUDES:REGULATOR (1), OXYGEN, DEMAND.]. This item has critical features such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4220012412109 does not contain precious metals.
This information was last updated on Jun 01, 2025.