National Stock Number
1660-99-301-2433
National Stock Number (NSN) 1660-99-301-2433, or NIIN 993012433, (oxygen system,aircraft survival kit) has an unknown assigned date. 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, 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 assigned to Item Name Code (INC) 61422. [A SYSTEM DESIGNED AS A COMPONENT OF AN AIRCRAFT SURVIVAL KIT TO PROVIDE EMERGENCY BREATHING OXYGEN UNDER VARYING CONDITIONS SUCH AS BAILOUT OR FAILURE OF MAIN OXYGEN SUPPLY. CONSISTS OF OXYGEN BOTTLES, REGULATOR AND MAY INCLUDE PERSONAL LEADS ASSEMBLY PROVIDING AN OXYGEN MANUAL RELEASE, NECESSARY HOSES AND FITTINGS TO CARRY OXYGEN AND COMMUNICATIONS FROM SURVIVAL KIT TO CREW MEMBERS PRESSURE SUIT AND/OR HELMET.].
This information was last updated on Feb 06, 2026.