Thd int on flange end 2.125-12unj-3b lh; flight safety critical
An adapter having a flange connection on one end designed to connect with another flange connection or a compression type mounting pad. 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 flange or flange fitting to boss or boss fitting in a straight line on items such as tanks, housings, valve fittings, and the like.
Classification: Flanges of iron or nonalloy steel
NSN 6105-01-548-3340
NSN 6135-01-544-8463
NSN 5910-01-178-6405
NSN 6240-00-004-2516
NSN 5925-01-535-4118
NSN 6145-01-338-4334
NSN 6145-01-432-4394
NSN 5985-01-245-6160
NSN 5835-01-303-6563
NSN 6135-00-567-1322
NSN 5990-01-090-3232
NSN 6145-00-881-1485