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 5925-01-176-5565
NSN 6240-01-444-1393
NSN 5999-00-788-2883
NSN 6220-01-260-9199
NSN 6320-01-569-2672
NSN 5975-00-682-0577
NSN 5945-01-559-2136
NSN 5835-01-482-1591
NSN 5945-01-604-8977
NSN 5975-01-094-6943
NSN 5920-01-562-3626
NSN 5945-00-812-8579