National Stock Number
4220-01-543-8223
National Stock Number (NSN) 4220-01-543-8223, or NIIN 015438223, (bit,mouthpiece,breathing apparat) was assigned September 21, 2006 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. 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, there are no suppliers 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) 39123. [A CUSHIONLIKE DEVICE THAT IS CONTOUR-FITTED AROUND THE TEETH. IT IS SPECIFICALLY DESIGNED TO FIT BETWEEN THE TEETH AND THE BREATHING APPARATUS MOUTHPIECE TO PROVIDE A CONTROLLED SUPPLY OF BREATHING GAS SUCH AS AIR, OXYGEN, MIXTURE, AND THE LIKE, DURING DIVE AND/OR RESCUE.]. 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 4220015438223 does not contain precious metals.
This information was last updated on May 01, 2025.