Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AD2H22NA found under Adapter Speedometer Tachometer D by E N M Co. The National Stock Number assigned to this part is 3040012866442, and the Federal Supply Class is 3040 Miscellaneous Power Transmission Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AD2H22NA.