Navy E-4/5/6 Machinist's Mate Rating Badges SBBA~Double~11145DBR three for Assistant Chiefs

three for Assistant Chiefs

Marine Gunners assists their force commanders in battle tracking

the Army Physical Fitness Test

One of the best of its kind

Navy E-4/5/6 Machinist's Mate Rating Badges SBBA~Double~11145DBR three for Assistant ChiefsUnited States Navy E 4 5 6 Machinist's Mate Rating Badge Criteria: Worn by Machinist's Mates (MM) with ranks from Petty Officer 3rd Class (E 4) to Petty Officer 1st Class (E 6). Machinist's Mates are typically responsible for the continuous operation of the engines, compressors, refrigeration and air conditioning equipment aboard the USN's vessels and at their land based installations. Some Machinist's Mates are also trained in Health Physics and