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 5950-01-110-2811
NSN 2925-01-187-5480
NSN 6620-00-155-2608
NSN 4140-00-555-2579
NSN 5998-01-387-5559
NSN 6685-00-284-2244
NSN 5985-01-575-5698
NSN 5998-01-141-1804
NSN 6220-00-443-0589
NSN 5945-01-588-5165
NSN 6145-01-109-0643
NSN 5895-01-458-6638