Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 618J856H32 found under Thermocouple Immersion by Conax Technologies Llc. The National Stock Number assigned to this part is 6685000071404, 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 618J856H32.