Specifications include, but are not limited to: Fire hydrants shall conform to the AWWA Standard for Dry-barrel Fire Hydrants, ANSI/AWWA C502. All hydrants shall have: breakable connection features and a breakable coupling on the stem immediately above the bury line which has a lower breaking point than the rest of the unit; 5-1/4” compression main valve; 6-inch length as specified; two 2-1/2 inch hose nozzles with National Standard threads; one 4 inch pumper nozzle with Tulsa Standard threads; “O” ring seal; drain valve; left (counter-clockwise) opening; Federal Yellow finish paint above ground line; and National Standard pentagon operating nut. Bury length must consist of a single barrel; extensions to achieve bury length will not be permitted. Where specified D-150 MJ outlet is in reference to a mechanical joint outlet for sandcast pipe. D-150 is a Mueller number and is for reference only. Only the following makes will be permitted: Clow Medallion, Mueller Centurian, American Darling B84B, Kennedy Guardian, Waterous WB-67, M&H 129 Traffic in accordance with detailed drawings which have been approved by, and are on file with, the City of Tulsa, Water and Sewer Department.