Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B-WK-765-33-PC7 found under Heating Element Electrical Nonim by Walz And Krenzer Inc. The National Stock Number assigned to this part is 4520013693858, 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 B-WK-765-33-PC7.