5995-01-522-8387

3120-14-352-6703 3120143526703 143526703 is a tubular shaped item with or without flange(s) designed to reduce friction and carry a kinetic load on the surface(s) parallel to the axis of the bore. it must have a visible or detectable means of lubrication or be self-lubricated. the over all length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body, except for straight tubular (without flange or shoulder) items having a bearing surface(s) parallel to the axis of the bore only. includes items which are divided into two or more segments which include 180 degrees (3.141 radians) or less of the bearing periphery. see also bushing, sleeve; spacer, sleeve; and washer (as modified). excludes pin, hollow.

1660-12-352-6703 1660123526703 123526703 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.

2530-00-352-6703 2530003526703 003526703

4520-01-352-6703 4520013526703 013526703 is a device capable of producing heat from gas, liquid fuel, or an electrical heating element designed for permanent installation in sheet metal ducts of a forced air circulating system. it consists of (1) a finned, steel burner tube, a combustion air blower, a control panel, and a constant level fuel supply system or (2) a device having a heating element which when connected to an electrical source, directly imparts heat. it may be provided with a flanged outer casing to facilitate mounting in planned or existing duct work. circulation of the heated air is achieved by use of a blower or fan not integral with the heating unit.