Impeller Nut Type 7/16, 20 UNF, Fits Brand Dayton, For Use With Grainger Item Number 4JMV2, 4JMX9, 5WXR9, 5WXT0, 5WXT1, 5WXT2, 5WXT3, 5WXT4, 5WXT5, 5WXT6, 5WXT7, 5WXT8, 5WXT9, 5WXU0, 5WXU1, For Use With Mfr. Model Number PPT03305G