Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R58HB16C45Y144B found under Conduit Assembly No by Mcdonnell Douglas. The National Stock Number assigned to this part is 5975013215687, and the Federal Supply Class is 5975 Electrical Hardware And Supplies. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like R58HB16C45Y144B.