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 5999-01-006-0164
NSN 5905-00-906-1131
NSN 5920-01-210-7129
NSN 5925-01-195-2985
NSN 6220-01-476-7939
NSN 6320-01-648-5538
NSN 5960-00-450-6353
NSN 5985-01-634-0635
NSN 5895-00-611-3168
NSN 6145-00-632-3229
NSN 5910-01-172-5659
NSN 5950-01-297-0829