A straight, hollow product, welded or seamless, of round, square, or any other cross section and continuous periphery, which does not conform in cross sectional dimensions to recognized pipe standards, or those in tables 1 through 10, appendix c, fiig a004a. It is designed to convey fluids, gasses, and/or semisolids. It may be rolled into coils for ease in handling. For items designed to join a tube or tube fitting to another tube, pipe, or hose or fitting, see adapter (as modified); coupling (as modified); or nipple (as modified). Excludes tube, bent (as modified); pipe, metallic; spacer, sleeve; metal bar (hollow); and items with fittings, except end protectors.
Classification: Other tubes, pipes and hollow profiles, seamless, circular cross-section, iron or nonalloy steel, cold-drawn or cold-rolled
NSN 4140-00-269-5795
NSN 5835-01-273-8732
NSN 5990-00-434-0620
NSN 5925-00-727-7574
NSN 5999-01-509-8874
NSN 6650-01-437-6254
NSN 6685-00-079-0313
NSN 6685-01-544-1346
NSN 4140-00-478-6199
NSN 6645-01-465-4915
NSN 5855-00-482-9876
NSN 5985-00-009-8728