Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 42FW-624 found under Nut Self Locking Extended Washer by Myers Tire Supply Distribution Inc. The National Stock Number assigned to this part is 5310011819340, and the Federal Supply Class is 5310 Nuts And Washers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 42FW-624.