Metal to metal seal
An adapter having machine threads (straight threads other than pipe or hose series) designed to accommodate a tube on one end or an unthreaded end designed to accommodate a tube. The other end has external or internal machine threads (straight threads other than pipe or hose series) and is designed to facilitate a gasket, preformed packing, washer, or the like to form a seal at the boss. It is designed to join a tube or tube fitting to a boss or boss fitting in a straight line on items such as tanks, housings, valve fittings, and the like. See also coupling, tube and nipple, tube.
Classification: Aluminum tube or pipe fittings (couplings,elbows sleeves)
NSN 5996-00-725-8307
NSN 6110-01-485-5097
NSN 4140-01-497-7412
NSN 6135-01-122-4448
NSN 6645-01-461-3725
NSN 7035-01-091-7481
NSN 5960-00-348-3015
NSN 6135-01-265-1384
NSN 5925-00-391-6987
NSN 5999-00-497-4309
NSN 5905-01-192-8618
NSN 6220-01-532-3503