Husqvarna 873350800 Mower Lift Hex Jam Nut, 1/2-13UNC For Husqvarna/Poulan/Roper/Craftsman/Weed Eater Husqvarna, Poulan, Poulan Pro, Roper, Sears/Craftsman, and Weed Eater 873350800 Mower Lift Hex Jam Nut, 1/2-13UNC Current part number 873350800 replaces previous part numbers 163305, 73220800, 73350800, 509P and 73350800X008. Replacement part for many brands including Husqvarna, Poulan, Poulan Pro, Roper, Sears/Craftsman, and Weed Eater Original equipment manufacturer replacement part 1-year warranty for defects in material or workmanship