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 7035-00-455-7666
NSN 6240-00-185-0415
NSN 4140-01-516-7246
NSN 5950-00-937-5848
NSN 5999-01-089-8701
NSN 5950-01-246-3984
NSN 5999-01-539-0240
NSN 5930-01-497-0403
NSN 4140-00-846-4786
NSN 6645-00-851-6654
NSN 5920-01-309-9216
NSN 6135-01-540-2403