National Stock Number
4220-01-343-3447
National Stock Number (NSN) 4220-01-343-3447, or NIIN 013433447, (diffuser,air supply) was assigned August 10, 1991 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 5 manufacturer part numbers associated with this NSN. One of those 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.
This part number has not been procured by the US Government in over 5 years.
This NSN is somewhat common among different platforms, belonging to 3 different weapons systems.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on May 02, 2006, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 39163. [A CORROSION RESISTANT METALLIC/NONMETALLIC ITEM FABRICATED FROM A SINGLE INTERNALLY CORED CASTING. IT IS SPECIFICALLY DESIGNED TO REDUCE BREATHING GAS VELOCITY WHILE INCREASING STATIC PRESSURE TO EFFECTIVELY DEFOG THE VIEWPOINT OF A HELMET, DEEP-SEA DIVER'S AND HELMET, DEEP-SEA DIVER'S HELIUM-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 4220013433447 does not contain precious metals.
This information was last updated on Apr 01, 2024.