Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4 1-2 TYPE1FMS02B0-600 found under Gage Pressure Dial Indicating by Desco Corp. The National Stock Number assigned to this part is 6685000683446, 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 4 1-2 TYPE1FMS02B0-600.