Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C187 Z2 C40 found under Insulator Plate by Siemens Schweiz Ag. The National Stock Number assigned to this part is 5970010288936, and the Federal Supply Class is 5970 Electrical Insulators And Insulating Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like C187 Z2 C40.