Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 87513-0501 found under Yoke Bearing And Po by Electric Boat Corp. The National Stock Number assigned to this part is 2040010958848, and the Federal Supply Class is 2040 Marine Hardware And Hull Items. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 87513-0501.