Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A10Z 2-300D found under Mount Resilient Wea by Designatronics Inc. The National Stock Number assigned to this part is 5342011240821, 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 A10Z 2-300D.