Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RSP66 found under Plate Hub by Crouse Hinds Electro. The National Stock Number assigned to this part is 5975004842223, 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 RSP66.