National Stock Number
1680-99-349-0156
National Stock Number (NSN) 1680-99-349-0156, or NIIN 993490156, (headrest,aircraft ejection seat) has an unknown assigned date. 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 a year. There have been 9 contracts issued for this part number, with 13 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE4A724F5749, SPE4A723F9710, SPE4A722F123H, SPE4A721F3099, SPE4A721F3099. The total value of the awarded contracts has been US$ 210,842.12.
This NSN is unique to one weapons system.
There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries.
This NSN is assigned to Item Name Code (INC) 66890. [A RIGID OR SEMI-RIGID FRAME COVERED WITH A RESILIENT PADDING MATERIAL AND AN UPHOLSTERED COVERING OF COTTON, LEATHER, PLASTIC OR THE LIKE. IT IS FIRMLY MOUNTED TO THE TOP OF A SEAT, AIRCRAFT EJECTION FRAME AND DESIGNED TO LIMIT BACKWARD HEAD TRAVEL RESULTING FROM IMPACT SHOCKS. EXCLUDES:ITEMS SPECIFICALLY DESIGNED AS A BACKREST.].
This information was last updated on May 07, 2025.