National Stock Number
5340-15-119-9871
National Stock Number (NSN) 5340-15-119-9871, or NIIN 151199871, (plug,vent) has an unknown assigned date. This NSN replaces 1 stock number, 5340150685794.
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 3 suppliers. Today, 2 suppliers are listed as Active suppliers 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 somewhat common among different platforms, belonging to 3 different weapons systems.
This NSN is assigned to Item Name Code (INC) 28458. [A PORTED ITEM WITH OR WITHOUT EXTERNAL THREADS. THE PORT(S) MAY CONTAIN A FILTERING DISK OR WIRE FABRIC. IT IS DESIGNED TO BE INSERTED INTO AN OPENING IN A CYLINDER, PUMP, REGULATOR, VALVE, HOUSING, CASING, OR THE LIKE, TO PERMIT THE FREE FLOW OF FLUID FROM OR TO THE ATMOSPHERE. EXCLUDES BREATHER.].
This information was last updated on Jan 19, 2026.