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 5905-01-352-7717
NSN 5975-00-865-3537
NSN 6650-01-446-1160
NSN 6110-01-133-8343
NSN 5935-00-223-0721
NSN 6320-00-572-0950
NSN 5975-01-543-5828
NSN 5925-00-064-9726
NSN 6145-01-647-8838
NSN 4140-01-463-3434
NSN 6135-01-193-3892
NSN 6150-00-833-3037