Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 69B-TC-T1-2PH570 found under Recorder 2 Pen Rack by Bayer Corp. The National Stock Number assigned to this part is 6625010317213, 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 69B-TC-T1-2PH570.