Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 41E-500-473PC18 found under Bolt Hook by Kapl Inc. The National Stock Number assigned to this part is 5306004776460, and the Federal Supply Class is 5306 Bolts. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 41E-500-473PC18.