Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B56P0001 found under Insulation Sleeving Electrical by Mcdonnell Douglas. The National Stock Number assigned to this part is 5970011574336, 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 B56P0001.