Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 200-30-500-3000 found under Gage Pressure Dial Indicating by Superior Pipe Specialties Co. The National Stock Number assigned to this part is 6685007850713, 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 200-30-500-3000.