2815-17-042-6860

4710-99-774-9599 4710997749599 997749599 is one or more lengths of pipe, straight or prebent to a predetermined angle. designed with added component(s) to conform to a specified pattern and form end connections on one and/or more ends. for items not conforming dimensionally to national bureau of standards applicable to pipe, see tube assembly, metal.

1660-99-681-5509 1660996815509 996815509 is a hollow body used to transport air to various parts of the aircraft for the purpose of heating, cooling, pressurizing, de-icing, and the like. it may include flange(s), bracket(s), and the like for mounting purposes. excludes pipes used in aircraft exhaust systems and pipes used in non-aircraft applications. excludes pipe, exhaust and pipe, air conditioning-heating.