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 5950-01-049-2451
NSN 6110-00-993-3930
NSN 2925-01-304-4567
NSN 4140-01-523-3837
NSN 5985-01-634-0635
NSN 6645-01-336-1625
NSN 5915-01-630-5696
NSN 6320-00-405-2348
NSN 5999-01-250-1242
NSN 6135-01-571-0845
NSN 5960-00-609-6732
NSN 6130-01-100-3285