2520-00-039-7022

4820-14-538-5994 4820145385994 145385994 is a valve having one outlet and two inlets that are usually opposite each other. it has a fluid pressure operated pistonlike item, called a shuttle, that controls either inlet. it is commonly used to provide an emergency passage for fluid in an aircraft hydraulic or pneumatic system in case of loss of pressure in the normal service lines.

5963-01-538-5994 5963015385994 015385994 is an electronic device capable of controlling voltage and/or current to produce gain, oscillation or similar integral functions. it consists of a collection of electronic parts such as capacitors, resistors, coils, relays, transistors, semiconductor devices, and microcircuits in a single replaceable package. the configuration, physical dimensions, and electrical parameters of the item have been standardized in accordance with government and/or industry specifications and/or standards. excludes items with nonstandardized configuration. it is not subject to disassembly as distinguished from such items as circuit card assembly and electronic components assembly. do not use if a more specific item name exists such as amplifier (as modified), coder (as modified), microcircuit (as modified), and oscillator (as modified).

5990-00-538-5994 5990005385994 005385994 is a synchro consisting of a stator and rotor inductively coupled. the rotor is free to turn in accordance with the electrical input from a transmitter synchro or a differential synchro. does not include variable resistors, goniometers, variable transformers, or items with dials.