Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BWF50-460-40SS found under Heating Element Electrical Nonim by Fulton Mfg Corp. The National Stock Number assigned to this part is 4520012904423, 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 BWF50-460-40SS.