Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number X2135 found under Disk Clutch Nonvehicular by Blaw Knox Corp. The National Stock Number assigned to this part is 3010003686471, and the Federal Supply Class is 3010 Torque Converters And Speed Changers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like X2135.