National Stock Number
5430-01-739-1949
National Stock Number (NSN) 5430-01-739-1949, or NIIN 017391949, (cap,vent,fuel storage tank) was assigned July 31, 2026 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 3 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 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 assigned to Item Name Code (INC) 17502. [A CAP DESIGNED TO BE MOUNTED ON THE VENT PIPING OF A FUEL STORAGE TANK TO ALLOW THE UNIMPEDED FLOW OF GASES IN AND OUT. IT PREVENTS THE ADMISSION OF RAIN, DIRT, AND OTHER FOREIGN MATTER TO THE TANK. EXCLUDES:BREATHER.]. 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 5430017391949 contains an unknown precious metal.
This information was last updated on Sep 01, 2026.