[3  & 4   MNPT]

[1   Female Coupling |  1  NPT Male]

Global air fitting king universal coupling. Made of plated steel. Include safety clip. Rubber seal material. Never use any air king coupling for steam service. Air king is for air and water service only. Air king is rated to 150psi at ambient temperature (70 degree F). Standard air king fittings come with AWR4 rubber washers. Air king meets pressure requirements as specified in A-A-59553 commercial item description superseding Mil Spec. WWC-633D.