Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 310538-1 found under Trimmer Pot Indicator by Transicoil Llc. The National Stock Number assigned to this part is 5905002253822, and the Federal Supply Class is 5905 Resistors. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 310538-1.