Viking Husqvarna 6030 Free Arm repair/ replacement parts.  Throat plate zig zag  number 4111555 with mounting screws.  From 6030 machine should fit other Vikings. (Possibly 19A, 21, 21A, 21E, 2000 series, 6000 series, 6010, 6020, 6240, 6260, 6270, 6360, 6430).  Return for refund if fails on your Viking.  Price includes shipping.