Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AA5H-9420 found under Thermometer Self Indicating by Weksler Glass Thermometer Corp. The National Stock Number assigned to this part is 6685002745515, 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 AA5H-9420.