Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 991 2223 found under Screw Cap Hexagon H by Cargotec Usa Inc. The National Stock Number assigned to this part is 5305011587829, 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 991 2223.