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 5945-01-426-1064
NSN 5895-01-551-1906
NSN 4140-01-590-9722
NSN 5990-01-392-8842
NSN 6685-01-543-5669
NSN 6220-01-049-4536
NSN 6135-01-484-8637
NSN 5985-00-960-5560
NSN 6105-01-032-4228
NSN 5920-01-233-8373
NSN 5998-01-421-9786
NSN 7035-00-252-7467