Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R6 6DIN440STA3P found under Washer Flat by Din Deutsches Institut Fuer Norm. The National Stock Number assigned to this part is 5310121266060, 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 R6 6DIN440STA3P.