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 5905-01-037-6842
NSN 5930-00-957-5217
NSN 6620-01-261-2985
NSN 5950-01-370-0313
NSN 5985-01-142-2821
NSN 5996-00-938-8805
NSN 6650-00-798-6847
NSN 6685-01-062-4146
NSN 5895-00-038-7408
NSN 5925-00-035-8469
NSN 5895-00-064-0304
NSN 6240-00-177-0385