Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 23429-000-00 found under Tread Nonmetallic N by Upright Inc. The National Stock Number assigned to this part is 7220011798473, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 23429-000-00.