Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 222391-015 found under Screw Machine by Bae Systems Information And Electronic Systems Integration I. The National Stock Number assigned to this part is 5305004552516, 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 222391-015.