National Stock Number
8475-01-392-6663
National Stock Number (NSN) 8475-01-392-6663, or NIIN 013926663, (earcup,flyer''s helmet) was assigned July 4, 1994 in the Federal Logistics Information System (FLIS). NIIN 013926663 was cancelled on August 2, 2004, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 8475013869113. 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.
This NSN is assigned to Item Name Code (INC) 50500. [AN ITEM USED AS A PROTECTIVE COVERING AND HOLDER FOR THE EARPHONE RECEIVER.]. 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 8475013926663 does not contain precious metals.
This information was last updated on Jul 01, 2025.