Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 665405 found under Piston Assembly Act by Honeywell Aerospace. The National Stock Number assigned to this part is 2995000161017, and the Federal Supply Class is 2995 Miscellaneous Engine Accessories Aircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 665405.