5 pcs Nozzles 1/2" Recessed fit Lincoln Weld Pak 180HD WeldPak 180 HD 11938 Welder Attention: Due to the existence of multiple versions of Lincoln's Weld Pak 180HD welder, please check and verify that your welder's code number is 11938 before making a purchase. The code number for Lincoln welders can be found on the number plate of the welder and is a 5-digit code.