The grain shall meet the requirements of ws20606; 3.12 in. Long; item is cross shaped - 4 places 0.200 in. Wide, 2 places 0.590 in. Min, 8 places 0.620 in. Max; level a packing; the material is intended for use as a grain for igniters; the igniter grain is for use in torch, cutting (eod) mk2 mod 0