Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5728A0030-01 found under Plug Engine Inlet A by 2Is Inc. The National Stock Number assigned to this part is 1680015728103, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 5728A0030-01.