Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 7X-0575 found under Washerflat by Carter Machinery Co. The National Stock Number assigned to this part is 5310016934791, 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 7X-0575.