National Stock Number
4220-01-431-4170
National Stock Number (NSN) 4220-01-431-4170, or NIIN 014314170, (valve,breathing apparatus) was assigned May 13, 1996 in the Federal Logistics Information System (FLIS). NIIN 014314170 was cancelled on December 2, 2005, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 4220010391873. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers 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) 39364. [A ITEM SPECIFICALLY DESIGNED TO AUTOMATICALLY/MANUALLY MAINTAIN OUTLET PRESSURE IN A DIVERS HELMET/BREATHING APPARATUS. IT IS DESIGNED FOR USE WITH BREATHING GASSES.]. This item does not have a nuclear hardened feature but does have other critical feature(s) 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 4220014314170 does not contain precious metals.
This information was last updated on Jul 01, 2025.