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 5975-00-984-6582
NSN 6145-00-351-4539
NSN 5945-00-670-6565
NSN 6105-01-523-2427
NSN 6110-01-604-9233
NSN 6320-00-731-6134
NSN 5990-01-356-4259
NSN 5905-00-389-6252
NSN 5920-01-063-7427
NSN 5965-01-150-1787
NSN 5950-00-504-0535
NSN 6320-01-425-1417