Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FR402 550 found under Slide Sectiondrawerextension by Hettich America Lp. The National Stock Number assigned to this part is 5340016817822, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like FR402 550.