Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number LD301-M2-5 found under Indicator Subassembly Pressure by Smar International Corporation. The National Stock Number assigned to this part is 6685015031679, 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 LD301-M2-5.