Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BDN-500C found under Fiberglass Repair Ferrule by Federal Marketing Co. The National Stock Number assigned to this part is 3740015474403, and the Federal Supply Class is 3740 Pest Disease And Frost Control Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like BDN-500C.