Both ends have 2-7/8 i.F.A.P.I. Box thread, 4 threads per inch, right-hand, 2-inch taper per foot, thread form a.P.I. V-0.038r
A straight metal fitting having internal threaded or tapered sockets of the same type and size on both ends, and a center shouldering for the seating of mating pieces. Used to join a drill rod shank to a drill rod section or two drill rod sections.
Classification: Parts of boring or sinking machinery of subheading 8430.41 or 8430.49,nesoi
NSN 6240-01-126-6816
NSN 5835-01-555-8963
NSN 5999-01-591-2030
NSN 6220-01-146-2838
NSN 6110-01-215-4206
NSN 5895-01-496-1760
NSN 5945-00-164-6447
NSN 5996-00-786-7968
NSN 5999-00-133-8669
NSN 5855-01-250-2421
NSN 2925-00-969-8340
NSN 6135-00-162-2437