Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 101-190TO260DEGF found under Indicator Temperature Heat Sensi by Wahl Instruments Inc. The National Stock Number assigned to this part is 6685003858999, 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 101-190TO260DEGF.