National Stock Number
1660-01-343-3421
National Stock Number (NSN) 1660-01-343-3421, or NIIN 013433421, (nosepiece,oxygen mask) has an unknown assigned date. NIIN 013433421 was cancelled on August 2, 1993, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 1660011138382. 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) 15752. [A RIGID ITEM WHICH SERVES AS A REINFORCEMENT FOR THE NOSE REGION AND HAS ACCOMMODATIONS TO HOLD IN PLACE THE ELASTIC BAND OF THE OXYGEN MASK.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1660013433421 does not contain precious metals.
This information was last updated on Jul 01, 2025.