Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 7 311930010 55 found under Spacer Plate by Boeing Company The. The National Stock Number assigned to this part is 5365012506314, and the Federal Supply Class is 5365 Bushings Rings Shims And Spacers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 7 311930010 55.