Nuc equipment. Ssr name is reducer expander
An adapter having standard pipe threads on one end or an unthreaded end designed to accommodate a pipe. 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 pipe or pipe fitting to a boss or boss fitting in a straight line on items such as tanks, housing, valve fittings, or the like. See also adapter bushing and coupling, pipe.
NSN 5965-01-580-8049
NSN 6645-00-940-0774
NSN 5915-00-719-6455
NSN 5930-00-790-8183
NSN 5999-01-328-5306
NSN 6645-01-258-5558
NSN 5996-01-013-0432
NSN 5835-01-416-6455
NSN 7035-00-371-7749
NSN 5855-00-079-2370
NSN 5965-01-462-9340
NSN 6110-01-360-5568