An item having wrenching facilities on one end and a threaded connection of one type within an externally threaded connection of another type. One connection must have machine threads not designed for any type of tube or tube fitting.
NSN 5975-00-342-5034
NSN 5905-01-139-5341
NSN 5950-01-466-3611
NSN 6135-00-209-6918
NSN 6645-01-133-8359
NSN 5920-01-368-5413
NSN 4140-01-495-6533
NSN 6645-00-200-2324
NSN 6645-01-012-0424
NSN 5945-01-095-2243
NSN 5950-01-442-7195
NSN 2925-01-156-9570