Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number Z 520 0000 3029 PART 230 found under Washer Flat by Bae Systems Marine Limited. The National Stock Number assigned to this part is 5310991223415, 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 Z 520 0000 3029 PART 230.