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2. Quick connect fitting - Wikipedia

   en.wikipedia.org/wiki/Quick_connect_fitting

   For hoses and piping, a quick connect fitting, also called a push fitting, is a coupling used to provide a fast, make-or-break connection of gas or liquid transfer lines. Operated by hand, quick connect fittings replace threaded or flanged connections, which require wrenches. When equipped with self-sealing valves, quick connect fittings will ...

3. North American Fire Hose Coupler Incompatibilities - Wikipedia

   en.wikipedia.org/wiki/North_American_Fire_Hose...

   1-inch hose with 1-8 NH NFPA threads (NFPA 1963 requirement; a.k.a. "Chemical Hose Thread" and "Booster Hose Thread" [7]; the chemical hose thread term likely originates from its use on chemical fire engines, an early firefighting device used from 1872 until the 1930s that used a combination of bicarbonate of soda and sulfuric acid to force ...

4. AN thread - Wikipedia

   en.wikipedia.org/wiki/AN_thread

   A 37° flare type end fitting for flexible hose The AN thread (also A-N ) is a particular type of fitting used to connect flexible hoses and rigid metal tubing that carry fluid. It is a US military-derived specification that dates back to World War II and stems from a joint standard agreed upon by the Army Air Corps and Navy, hence AN.

5. Hose coupling - Wikipedia

   en.wikipedia.org/wiki/Hose_coupling

   In 1959 [8] Hozelock Ltd in the United Kingdom invented and patented the international standard plastic, click-on style, push-fit hose end connector now used with garden hoses. The concept was developed to replace metal hose end connectors in coal mines, which were prone to cause static sparks and the possibility of methane gas explosions.

6. Storz - Wikipedia

   en.wikipedia.org/wiki/Storz

   The 100 mm (4-inch) and 125 mm (5-inch) Storz couplers have been specified in NFPA 1963, Standard for Fire Hose Connections, since the 1993 edition. U.S. cities that have fire hydrants with 125 mm Storz connectors include Raleigh, NC [ 5 ] and the City of Corvallis, OR (adapter on 4-inch threaded outlet).

7. National pipe thread - Wikipedia

   en.wikipedia.org/wiki/National_pipe_thread

   This means that NPT fittings should be burr-free and lubricated using a ... 2 + 5 ⁄ 8: 66.6750 3 8 0.12500000 ... Garden hose thread; Gender of connectors and ...