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HOSE FITTINGS Hose fittings are assemblies of separate parts. These parts are the nipple, the socket, the swivel nut or flange, and the sleeve. The nipple is the part that fits the inside diameter of the hose. Nipples have three configurations for the hose-to-tube or component surface-sealing portion. They are the flared,
Hose fittings are identified by applicable military specification (MS) and manufacturers name or trademark on fittings and nuts. Flared or flareless fittings and nuts are color-coded to show materials or material finishes. See table 5-1.
Table 5-1.Hose Fitting Color and Material Code
All hose assemblies are identified by tags, bands, or tapes. Some identifications are permanently marked while others are removable. Removable tags, bands, or tapes should not be installed on hose assemblies located inside fuel and oil tanks or in areas of an aircraft where tags, bands, or tapes could be drawn into the engine intake. Hose assemblies are either commercially manufactured or locally fabricated. |
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