A tubular item, usually pre-bent forming part of the heating surface area of a high pressure steam boiler.
Classification: Parts for steam or other vapor generating boilers and super-heated water boilers, except heat exchangers
NSN 5965-01-262-9608
NSN 4140-01-386-6688
NSN 5950-01-224-0325
NSN 5945-01-347-6413
NSN 6240-01-134-2419
NSN 5985-01-016-6928
NSN 5920-01-132-4794
NSN 6320-00-098-2858
NSN 6610-01-633-8931
NSN 6135-01-577-5532
NSN 5835-00-834-1286
NSN 6320-01-495-1244