Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number K392M-D-R found under Thermometer Indicating Resistanc by Wahl Instruments Inc. The National Stock Number assigned to this part is 6685012754701, 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 K392M-D-R.