1100-173/A1 THERMOSTAT NG  Rangemaster part no A028612.

Fits various models such as:

6146**, 6147**, 6148**, 6149**, 6150**, 6151**, 6152**, 6153**, 6288, 6289**, 6293**, 6330**, 6331**, 6349, 6452, 6454, 6456, 6457, 6458, 6461, 6462, 6463, 6464, 6465, 6466, 6467, 6480, 6481, 6482, 6483, 6484, 6485, 6486, 6487, 6490, 6491, 6755, 6758, 6815, 6840, 6891, 6894, 7303, 7304, 7337, 7338, 7339, 7340, 7341, 7342, 7343, 7344, 7345, 7346, 7347, 7354, 7355, 7356, 7357, 7358, 7359, 7360, 7361, 7362, 7363, 7364, 7365, 7366, 7367, 7368, 7369, 7382, 7383, 7384, 7385, 7386, 7399, 7400, 7401, 7402, 7403, 7404, 7405, 7406, 7407, 7408, 7413, 7414, 7415, 7417, 7418, 7419, 7420, 7421, 7422, 7423, 7424, 7436, 7778, 7779, 7780, 7781, 7789, 7790, 7791, 7792, 7793, 7794, 7798, 7799, 7800, 7801, 7802, 7803, 7807, 7808, 7809, 7810, 7811, 7812, 8038, 8039, 8041, 8048, 8049, 8050, 8051, 8470, 8471, 8472, 8473, 8476, 8477, 8478, 8479, 8499, 8500, 8501, 8502, 8505, 8506, 8507, 8508