Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 13083939-2 found under Setscrew by Program Manager Advanced Attack. The National Stock Number assigned to this part is 5305012274857, and the Federal Supply Class is 5305 Screws. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 13083939-2.