Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 340-00-120-00 AND 365-03-100-00 found under Counter Assembly Meter Mechanica by Prince Alexander Partners Inc. The National Stock Number assigned to this part is 6680002116351, 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 340-00-120-00 AND 365-03-100-00.