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 6685-01-170-5651
NSN 5999-00-008-3546
NSN 5990-01-069-0365
NSN 6620-01-599-2011
NSN 6645-01-567-8282
NSN 6150-01-143-1085
NSN 5990-00-905-6472
NSN 6130-00-419-1120
NSN 2925-01-534-7314
NSN 5855-01-068-3683
NSN 7035-00-054-3414
NSN 5998-00-707-5781