Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3831-552 found under Nut Plain Castellat by Lucas France Sa Div Aerospace France. The National Stock Number assigned to this part is 5310142578465, 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 3831-552.