Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 54-0030 found under Bearing Roller Track Roller by Phillips Corporation. The National Stock Number assigned to this part is 3110016210244, 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 54-0030.