Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 541 20 09-89 found under Gage Pressure Dial Indicating by United Rentals North America Inc. The National Stock Number assigned to this part is 6685015527820, 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 541 20 09-89.