Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 657800CL1 found under Weight Counterbalance by Accurate Threaded Products Company. The National Stock Number assigned to this part is 3040013229011, and the Federal Supply Class is 3040 Miscellaneous Power Transmission Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 657800CL1.