United States Navy Petty Officer 3rd Class Rank Insignia Patch E4, Aviation Machinist`s Mate

Petty Officer Third Class is the first of the Navy's Petty Officer grades, the Navy's variation of non-commissioned officers. It is above Seaman and below Petty Officer Second Class. A Petty Officer Third Class serves both as a leader and as a technical expert, and all Petty Officers have a specified rating, or job. The exact title with which a petty officer is addressed depends on their specialty - a Petty Officer Third Class serving as a Machinist's Mate, for example, would have the full title of Machinist's Mate Third Class.

Petty Officer Third Class is the 4th rank in the United States Navy , ranking above Seaman and directly below Petty Officer Second Class. A petty officer third class is a Non-commissioned Officer at a grade of E-4.

Aviation machinist's mates are usually assigned to billets concerned with the maintenance of turbo-jet aircraft engines and associated equipment. They are responsible for the maintenance and replacement of aircraft engines and accessories, as well as performing the duties of flight engineers.

Original Fabric Insignia patch with black backing and silver and red embroidery.