A straight one piece adapter with threads on one end differing from the threads on the opposite end, used for connecting drill pipes, drill collars, or drill rods to drill bits or for connecting swivels to drill rods in well drilling and servicing operations. Excludes tool joints.
Classification: Parts, nesoi, of machinery of heading 8429 or 8430
NSN 6145-00-370-1964
NSN 4140-00-401-3123
NSN 5975-00-963-6180
NSN 5965-00-253-1302
NSN 6650-01-340-1734
NSN 6150-01-264-6926
NSN 6620-01-026-0346
NSN 5935-01-420-8256
NSN 5910-01-428-4361
NSN 5910-00-878-2732
NSN 5950-01-235-8918
NSN 6650-01-355-4559