#40 Nordyne Orifice 661040
Nordyne orifice #40. Also known as drill size 0.0980.
Replaces #660838, 660538, 660544, 1065524, 10655240 & 1187220.
Hex head is 7/16", length is 7/16", threads are 1/8-27 NPT.
Picture is for reference only. Hole size will vary on actual item.