Foster , 3 SERIES PLUG, 1/4" MPT , Industrial Interchange Hose Couplings ( 1/4 " Flow, One Way Shut-Off ) , Standard Plug (Male Pipe Thread) , 1/4" NPT

Standard Industrial interchange design, most widely used in industry. 3 and 5 series automatic water service comply with A-A-59439 ( formerly MIL-C-4109F ). 3-4-5-6 Series meet ISO 6150-B, ANSI ( NFPA)T3.20.14-1990. In addition, SV sockets meet ISO 4414. Sockets are normally supplied with a Buna-N compound. Other seal are available. Ethylene Propylene seals are available for steam. Viton seals are avialble for heat. The following are .pdf's for: Specifications and Layouts - Industrial Interchange and Non Standard Interchange : Fluid Compatability Guide for Quick Disconnect Hose ; 1/4" Industrial Interchange Hose Couplings Catalogue.