Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 810-2223301-25 found under Bellmouth by The Entwistle Company. The National Stock Number assigned to this part is 2040010982406, and the Federal Supply Class is 2040 Marine Hardware And Hull Items. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 810-2223301-25.