Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 42A3444 PIECE 50 found under Nut Plain Hexagon by Fisher Controls Co Inc. The National Stock Number assigned to this part is 5310013796538, 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 42A3444 PIECE 50.