Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 386638 found under Bushing Assembly by Simpson Lawrence Ltd Johnson And Evi. The National Stock Number assigned to this part is 2520011235066, and the Federal Supply Class is 2520 Vehicular Power Transmission Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 386638.