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 5990-01-040-1320
NSN 5925-00-099-3585
NSN 5945-00-419-0184
NSN 5998-01-430-3883
NSN 5985-01-524-7516
NSN 5915-01-441-7857
NSN 5985-00-203-1200
NSN 6130-01-200-8212
NSN 6610-00-103-1196
NSN 6145-00-104-6047
NSN 6135-01-462-6040
NSN 6320-01-067-0474