Rigid 51050 e-731 3/8-inch stud adaptor. The rigid 51050 e-731 3/8-inch stud adaptor is a pipe adaptor that is for use with no. 819 nipple chuck to allow close nipple threading of all sizes of pipe smaller than 2-inch. The rigid 51050 e-731 3/8-inch stud adaptor has a 3/8-inch size.








