Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number STC 5532 2 found under Circuit Card Assemb by Stewart And Stevenson Power Inc. The National Stock Number assigned to this part is 5998011616305, and the Federal Supply Class is 5998 Electrical And Electronic Assemblies Boards Cards And Associated Hardware. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like STC 5532 2.