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 6620-01-524-0583
NSN 5998-01-188-7555
NSN 5935-01-466-2418
NSN 6220-01-168-3172
NSN 5935-00-446-3159
NSN 5999-01-246-5677
NSN 5998-00-925-2992
NSN 5935-01-074-4612
NSN 5999-01-429-0149
NSN 2925-01-194-9737
NSN 5855-01-288-6341
NSN 5998-00-771-0597