Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HJ283720 IR222820 found under Bearing Roller Needle by Timken Aerospace Inc. The National Stock Number assigned to this part is 3110001837052, and the Federal Supply Class is 3110 Bearings Antifriction Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HJ283720 IR222820.