Cage 78286 holds the design control.
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.
NSN 6145-00-816-2005
NSN 6650-00-195-7519
NSN 5985-00-588-9701
NSN 5930-01-408-2229
NSN 5920-01-199-5522
NSN 5950-01-165-9116
NSN 5895-01-608-9442
NSN 5925-01-353-6131
NSN 6240-01-301-1084
NSN 5910-01-628-7499
NSN 5985-00-156-5837
NSN 6320-01-259-2604