Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TREND-C-033-1 found under Adapter Assembly Interface Devic by Altair Avionics Corp. The National Stock Number assigned to this part is 4920015095532, 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 TREND-C-033-1.