Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5770318-0004-8 found under Bar Rd Ht by Electric Boat Corporation. The National Stock Number assigned to this part is 9510012629631, and the Federal Supply Class is 9510 Bars And Rods. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 5770318-0004-8.