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 5835-01-123-8305
NSN 5835-01-495-5986
NSN 5910-01-630-1874
NSN 6150-01-379-7942
NSN 5920-00-434-4230
NSN 6110-00-418-9363
NSN 2925-01-238-9974
NSN 5985-01-182-1736
NSN 6220-01-573-0066
NSN 6110-01-135-2027
NSN 6130-01-555-3364
NSN 6150-01-513-1367