Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 290-035-5052 found under Screw Externally Re by Kontron Ag. The National Stock Number assigned to this part is 5305011121556, 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 290-035-5052.