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 5975-00-281-5587
NSN 5925-01-506-7833
NSN 6220-00-411-0528
NSN 4140-01-442-1670
NSN 5920-01-598-9137
NSN 5915-01-181-6626
NSN 5895-00-472-9829
NSN 6220-00-406-8098
NSN 6320-00-674-1361
NSN 5925-01-465-3055
NSN 5950-01-440-5929
NSN 6150-00-636-8938