Astm-a-519 type 4140
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 6240-01-557-1177
NSN 5855-01-242-2572
NSN 6645-00-654-8804
NSN 6130-01-417-5229
NSN 5920-01-191-6321
NSN 5935-01-086-6010
NSN 4140-01-269-8378
NSN 5960-01-144-5502
NSN 6240-01-317-5748
NSN 5999-01-211-3782
NSN 6145-01-492-5098
NSN 5999-00-051-0445