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 6150-00-938-0110
NSN 6620-01-262-5128
NSN 6220-01-398-0614
NSN 6610-01-287-3678
NSN 2925-01-612-0405
NSN 5985-00-982-3344
NSN 5905-00-691-6467
NSN 7035-00-535-8109
NSN 6240-00-789-3370
NSN 6220-01-492-2563
NSN 5835-01-461-8184
NSN 2925-00-767-4245