Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number J48U-S4C0409-SL-8HN31 found under Indicator Temperature Thermocoup by Pyromation Inc. The National Stock Number assigned to this part is 6685016224607, 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 J48U-S4C0409-SL-8HN31.