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 5999-00-912-5869
NSN 6650-01-011-3472
NSN 5895-01-569-9419
NSN 5990-01-575-3275
NSN 5960-01-266-9520
NSN 4140-00-866-7015
NSN 5975-01-287-2155
NSN 6105-01-101-5357
NSN 5990-01-099-8574
NSN 2925-01-580-2993
NSN 5996-01-408-8805
NSN 6685-00-862-5431