Pipe Nipple Pipe Size 1-1/2 In. Connection Threaded Length 72 In. Schedule 40 Material of Construction Galvanized Carbon Steel 1.610 Inside Dia (In.) 1.900 Outside Dia (In.) 0.145 Wall Thickness (In.) Compliance Certified For Use in Potable Water Applications Standards ASTM A-733 ASTM A-53 Federal Specification WWN 351