Aluminum 1 1/2" Female NH to 1 1/2" Male NPSH Threads_NPSH 5 inch NPT or NPSH

5 inch NPT or NPSH male hose coupling is 2

National Hose (NH) aka National Standard Thread (NST) is often referred to as “fire hose thread” as this is by far the most common thread in use today by fire departments

Spanners have smoothly rounded edges

Our 1 1/2 inch Made in the USA fire hose is manufactured to this specification shall meet and exceed all performance requirements of NFPA 1961 and Underwriter’s Laboratories standards

The most common fire fitting thread in the United States is 2 1/2 inch NH /NST

Aluminum 1 1/2" Female NH to 1 1/2" Male NPSH Threads_NPSH 5 inch NPT or NPSHUSDA Forestry Service fire hose reducer feature aluminum coupling with a 600 PSI test pressure. Meet Forest Service Spec 5100 107. Female 1 1 2 inch NH, 9 threads per inch and male 1 1 2 inch NPSH, 11 1 2 threads per inch. Meets National Fire Equipment System (NFES #0006). Water Handling Accessories flow rates are 100 PSI flowing pressure. Fire hose reducer female adapters comes with a gasket. This Wildland Fire Equipment adapter or coupling is used