Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RAPISCAN 522B found under X Ray Apparatus Radiographic Ind by Rapiscan Systemsinc. The National Stock Number assigned to this part is 6635015608889, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like RAPISCAN 522B.