Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RM4-5A found under Bearing Roller Rod End by Rexnord Industries Llc. The National Stock Number assigned to this part is 3110001807622, 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 RM4-5A.