出典:Wikipedia
出典:『Wikipedia』 (2011/08/05 14:21 UTC 版)
The AN thread 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 and Navy, hence AN. When the Air Force became its own service in 1947 the AN designation came to represent Air Force and Navy. Some aftermarket automotive fitting manufacturers sometimes still mistakenly refer to it as "Army-Navy".