Male Reducing Hex Nipple Product Specification Part No. NPTF Thread NPTF Thread 17073 1/8 1/16 17074 1/4 1/8 17076 3/8 1/8 17078 3/8 1/4 17080 1/2 1/4 17082 1/2 3/8 17084 3/4 1/2 17086 1" 3/4