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 6220-01-213-6154
NSN 5910-01-233-2905
NSN 5905-01-252-9007
NSN 5985-01-306-9796
NSN 6145-01-483-5862
NSN 5895-01-613-8695
NSN 6645-01-322-5644
NSN 6650-00-299-9681
NSN 5998-01-519-2521
NSN 5910-01-494-6957
NSN 6610-00-225-9886
NSN 6645-00-099-6913