National Stock Number
4330-00-405-5983
National Stock Number (NSN) 4330-00-405-5983, or NIIN 004055983, (filter,breather,mic) was assigned April 5, 1971 in the Federal Logistics Information System (FLIS). NIIN 004055983 was cancelled on April 29, 2010, with a cancelled status of "Item is Cancelled - Inactive." 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, only one supplier is 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) 77777. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4330004055983 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.