Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 642143 found under Cage And Gear Assy by Honeywell Intl Inc. The National Stock Number assigned to this part is 2995006216805, 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 642143.