Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 72-5A0444FMX found under Thermometer Self Indicating Bime by Weksler Glass Thermometer Corp. The National Stock Number assigned to this part is 6685002916815, 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 72-5A0444FMX.