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Brief Overview About Joint Army-Navy Specification (JAN standards)

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JAN is an acronym describing a Joint Army-Navy Specification, which indicates the highly regulated government specifications used for electronic components of a specified quality or survivability. JAN parts have tightly maintained quality control. It also usually means the parts will last longer and withstand higher temperatures, voltages, and currents than their consumer counterparts. Although these specifications for technical equipment are developed by a joint board of the United States Army and Navy, they are usable for civilian equipment as well as for equipment built specifically for the military. These specifications describe the parts in detail, from the engineering aspect down to quality requirements. The JAN prefix is usually abbreviated to J on smaller devices and parts.

The Joint Electronics Type Designation System (JETDS), previously known as the Joint Army-Navy Nomenclature System (AN System), was designed during World War II as a designator for electronic equipment. MIL-STD-196 describes this designation system in detail. This system does not cover computer software and commercial unmodified electronics for which the manufacturer maintains design control. Electronic material, according to the military, usually means devices employed in data processing, detection and tracking recognition and identification, communications, aids to navigation, weapons control and evaluation, flight control, and electronic countermeasures.Parts are assigned prefixes if they are electronic material of military design, commercial electronic material that has been modified for military use, of electronic material intended for use by other Federal and government agencies. The prefix is usually composed of three letters that signify where the equipment is used, what it does, and its purpose.