Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SYN6AVB000B139 found under Indicator Temperatu by Jewell Instruments Llc. The National Stock Number assigned to this part is 6930008345923, 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 SYN6AVB000B139.