Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C22 5390 found under Shelf Electrical Equipment by Andrea Electronics Corporation. The National Stock Number assigned to this part is 5975012402311, 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 C22 5390.