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The most common fire hydrant outlet in the USA is 2 1/2 inches with NH / NST threads
Compatible part number - FFH2525F
National Stock Number (NSN 4210-01-079-9283)
If you have a fire department connection
This plug will fit into a female with an inside diameter of approx
Carbon Steel 3" Flange with National Pipe Tapered (NPT) Male Threads_NPT The most common fire hydrantNational Pipe Tapered (NPT) Carbon Steel Flange. ASA Forged Flanges have raised shoulder with no raised face. National Pipe Tapered is common in plumbing and some industrial uses. Sometimes referred to as pipe thread because PVC pipe and schedule 40 pipe are typically threaded in NPT. ANSI was originally formed in 1918, when five engineering societies and three government agencies founded the American Engineering Standards Committee (AESC). In 1928,
US$ 198.32
US$ 1749.50
US$ 5569.50
