scope:

This standard establishes material labeling requirements for identification, function, subfunction, pressures, hazards and direction of flow for pipes, hoses and tube lines used in aircraft, missile, space systems, and support equipment. The use of colors, words and symbols to identify the functions of such items (to include approved abbreviations), and the dimensions of labeling items such as tags, tapes, and bands, are specifically prescribed (see 4.1.1).

The criteria for marking functions upon, and designating hazardous pipes, hoses and tube lines, are designed to result in rapid servicing of functional systems to return them to full operation and are an integral part of the complete system. Lines, pipes, and hoses external to these systems should be coded in accordance with MIL-STD-101.

intended Use: