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 6320-01-425-1417
NSN 6320-01-433-1210
NSN 5895-00-897-1204
NSN 5920-01-259-1602
NSN 5965-01-438-0647
NSN 6130-01-507-7939
NSN 6240-01-335-1712
NSN 5895-01-495-3276
NSN 4140-01-580-8573
NSN 5925-01-515-8951
NSN 6135-00-767-0331
NSN 5960-00-304-8668