Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B86K0185-1 found under Transformer Power by Mcdonnell Douglas. The National Stock Number assigned to this part is 5950011223301, and the Federal Supply Class is 5950 Coils And Transformers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B86K0185-1.