Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number J-3306-25 found under Transmitter Group Humidity Tempe by Cole Parmer Instrument Co. The National Stock Number assigned to this part is 6685012782965, 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 J-3306-25.