Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 756-4-00259-001 found under Plug Assembly Seali by British Aerospace Inc. The National Stock Number assigned to this part is 5340996080316, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 756-4-00259-001.