What is an MMN in the Navy?
A Navy MMN is a Machinist Mate who works on the nuclear power generation systems on aircraft carriers and submarines. What ASVAB score do you need to be a Navy Machinist Mate? To qualify for Machinist Mate, you need a VE (Verbal Expression), AR (Arithmetic Reasoning), MK (Math Knowledge), and AS (Auto Shop) total of 188.
What kind of training do MMS get in the Navy?
Like all sailors, MMs should take full advantage of on-the-job training (OJT), other unique training opportunities, and educational opportunities offered and afforded them during their naval service. The United States Military Apprenticeship Program (USMAP) also allows MMs to complete their civilian apprenticeship requirements while on active duty.
What is the Navy Enlisted Classification?
Navy Enlisted Classification. The U.S. Navy has several ratings or job specialties for its enlisted members. An enlisted member is known by the enlisted rating, for example, a Machinist's Mate (or MM or by the enlisted rate, for example Petty Officer First Class (or PO1). Often Navy enlisted members are addressed by a combination...
What is the highest rank in the Navy?
The highest rank attainable in the Navy is the five-star Fleet Admiral. In 1944, Congress created the rank Fleet Admiral to be granted to four people.
What rank is MM1 in the Navy?
machinist's mate petty officer first classOften Navy enlisted members are addressed by a combination of rating and rate. In this example, this machinist's mate petty officer first class may be addressed as Machinist's Mate 1st Class (or MM1).
What are the ranks in the Navy in order?
Navy Officer RanksEnsign (ENS, O1) ... Lieutenant, Junior Grade (LTJG, O2) ... Lieutenant (LT, O3) ... Lieutenant Commander (LCDR, O4) ... Commander (CDR, O5) ... Captain (CAPT, O6) ... Rear Admiral Lower Half (RDML,O7) ... Rear Admiral Upper Half (RADM, O8)More items...
What do machinist mates do in the Navy?
Machinist's Mates (MM) are responsible for operating and maintaining ship propulsion machinery, auxiliary equipment and outside machinery. Specifically, your job responsibilities as an MM may include: Aligning piping systems for oil, water, air and steam.
What rank is machinist mate?
Physical Description. United States Navy Aviation Machinist's Mate 2nd Class rank insignia; blue embroidered eagle and two chevrons on white cotton; blue embroidered winged propeller in between eagle and chevrons.
What is the lowest Navy rank?
Seaman RecruitSeaman Recruit (E-1) Seaman recruit (SR) is the lowest enlisted rank in the Navy, just below seaman apprentice.
What rank do Navy SEALs start at?
Seaman (E-3) Rank overview: Seaman is considered the entry level of the U.S. Navy SEALs and the third lowest ranking among enlisted in the USN.
How long is Navy mm school?
nine weeksMachinist's Mate (Submarine) class "A" school is nine weeks in duration, and the school is located in Groton, Connecticut. The MM Submarine option has two possible paths, Auxiliary or Torpedoman's Mate.
Where do Navy machinist mates get stationed?
Aviation Machinist's Mates may be assigned to sea or shore duty anywhere in the world, so can expect a wide range of different working environments. Such environments could include land-based hangars, hangar decks, flight decks aboard aircraft carriers, or flight lines at air stations.
What rank is Machinist First Class?
Machinist's Mate Rating Petty Officer 1st Class is 100 percent made and handled in the USA....Machinist's Mate Rating Petty Officer 1st Class.SKUMM1BrandMedals of America1 more row
What is the highest paid job in the Navy?
The Aviation Boatswain's Mate has an E-9 Navy rating, making it the highest salary in Navy.
How much does a machinist mate make in the Navy?
Average U.S. Navy Machinist Mate yearly pay in the United States is approximately $59,635, which is 29% above the national average.
What is a BT in the Navy?
Boiler Technicians were responsible for the inspection, maintenance, and repair of everything involved in a steam-propulsion system.
What does a Machinist Mate do in the Navy?
A Navy Machinist Mate operates and maintains steam turbines, gears, and auxiliary machinery for ship propulsion.
What is a Navy Nuclear Machinist Mate (MMN)?
A Navy MMN is a Machinist Mate who works on the nuclear power generation systems on aircraft carriers and submarines.
What ASVAB score do you need to be a Navy Machinist Mate?
To qualify for Machinist Mate, you need a VE (Verbal Expression), AR (Arithmetic Reasoning), MK (Math Knowledge), and AS (Auto Shop) total of 188....
How long is a school for a Machinist Mate?
Training to become a Navy Machinist Mate is nine weeks long and is held at Great Lakes, Illinois. Training as a Nuclear Machinist Mate includes 12...
How much does a Machinist Mate make?
Like all military branches, the Navy pays Machinist Mates according to rank and time in service. Currently, a new recruit makes a monthly base pay...
What is Navy enlisted classification?
Navy Enlisted Classification. The Navy Enlisted Classification (NEC) system supplements the rating designators for enlisted members of the United States Navy. A naval rating and NEC designator are similar to the Military Occupational Specialty (MOS) designators used in the U.S. Army and U.S.
What is a MM 3355?
For example, a person holding the MM-3385 is a nuclear-trained machinist's mate for surface ships, and a person with an MM-3355 is a nuclear-trained machinist's mate for submarines. In the U.S. Navy's officer ranks, the naval officer designator serves a similar purpose.
What are the responsibilities of a Navy machinist?
Some of the more technical responsibilities of machinist's mates include: Aligning piping systems for oil, water, air, and steam, and controlling the operation of ship boilers and steam turbines used for ship propulsion and service systems. Cleaning, adjusting, testing and performing other preventive ...
How long does it take to become a Navy machinist's mate?
Qualifying as a Navy Machinist's Mate. After Navy basic training, these sailors spend eight weeks in technical training (or as the Navy calls it "A school") at the Naval Recruit Training Command in Great Lakes, Illinois. To be eligible to serve as a Navy machinist's mate, you'll need a combined score of 195 in the verbal (VE), arithmetic (AR), ...
What is the minimum vision required for a machinist?
Normal hearing is required, however, and will be tested prior to granting this rating. Vision must be correctable to 20/20 and normal color vision (no colorblindness) is required to serve as a machinist's mate.
What are the auxiliary machines that a company maintains outside of its main machinery space?
They also maintain auxiliary machinery outside of main machinery spaces, such as electrohydraulic steering engines and elevators, refrigeration plants, air conditioning systems, and desalinization plants. And, they may also operate and maintain compressed gas producing plants.
Rating Description
Machinist's Mates (MM) operate, maintain, and repair (organizational and intermediate level) ship propulsion machinery, auxiliary equipment, and outside machinery, such as: steering engine, hoisting machinery, food preparation equipment, refrigeration and air conditioning equipment, windlasses, elevators, and laundry equipment; operate and maintain (organizational and intermediate level) marine boilers, pumps, forced draft blowers, and heat exchangers; perform tests, transfers, and inventory of lubricating oils, fuels, and water; maintain records and reports; and generate and stow industrial gases.
MM Roles
Steam Plant Auxiliary Systems Maintainers operate and maintain steam turbines and reduction gears used for ship propulsion and auxiliary machinery such as turbo-generators, pumps, and oil purifiers.
Waiver of Merchant Mariner Credential Application Fees for Active Duty Members
The Office of Merchant Mariner Credentialing has published CG-MMC Policy Letter 02-20, titled: Guidance on Waiver of Merchant Mariner Credential Application Fees for Active Duty Members of the Uniformed Services.
Merchant Marine Credentialing Basics
Merchant Marine Credentials (MMC) are credentials issued by the United States Coast Guard through the National Maritime Center. In general, there are two types of merchant fleets: those that operate in national waters and those that operate in international waters. The type of credential you need depends on the fleet type.
Which Credential Is Right For You?
Which credential to choose is based on your professional experience and the requirements you meet as well as your professional goals. Small and large vessels are used in both national and STCW operation, so the "best" choice will depend on your personal goals and where you want to work.
Military Training Approved By USCG (NMC)
To determine if your military or civilian training courses have been reviewed and accepted by the USCG National Maritime Center (NMC) for credit towards credentialing standards, review the approved course listings.
NVIC Assessments
Navigation and Vessel Inspection Circulars (NVIC) provide detailed guidance about the enforcement or compliance with a certain federal marine safety regulations and Coast Guard marine safety programs. Click here to learn move about NVICs.

Overview
The Navy Enlisted Classification (NEC) system supplements the rating designators for enlisted members of the United States Navy. A naval rating and NEC designator are similar to the Military Occupational Specialty (MOS) designators used in the U.S. Army and U.S. Marine Corps and the Air Force Specialty Code (AFSC) used in the U.S. Air Force.
The U.S. Navy has several ratings or job specialties for its enlisted members. An enlisted member is known by th…
01 Deck Department
0160 - Causeway Barge Ferry Pilot PO2-MCPO
0161 - YTB/YT Tugmaster PO1-MCPO
0164 - Patrol Boat Coxswain SN-PO1
0167 - LCAC Operator CPO-MCPO
0169 - Causeway Barge Ferry Coxswain PO3-PO1
02 Navigation Department
0202 - Assistant Navigator PO1-MCPO
0215 - Harbor/Docking Pilot PO1-MCPO
0299 - Quartermaster Basic
03 Operations Department
0302 - AN/SYS-2 Integrated Automatic Detection and Tracking (IADT) Systems Operator SN-CPO
0304 - LCAC Radar Operator/Navigator PO2-CPO
0318 - Air Intercept Controller PO2-PO1
0319 - Supervisory Air Intercept Controller PO1-MCPO
0324 - ASW/SUW Tactical Air Controller (ASTAC) PO2-MCPO
04 Sonar Technician (Submarine/Surface)
0402 - AN/SQQ-89(V)2/9 Active Sonar Level II Technician/Operator Petty Officer -Chief
0410 - AN/SLQ-48(V) Mine Neutralization Systems (MNS) Operator/Maintenance Technician SN-MCPO
0411 - AN/SQQ-89(V)4/6 Sonar Subsystem Level I Operator SN-PO1
0414 - AN/SQQ-89(V)3/5 Active Sonar Level II Technician/Operator PO3-SCPO
0415 - AN/SQQ-89(V) 2/3/4/6/7/8/9/12 Passive Sonar Level II Technician/Operator PO3-SCPO
08 Weapons Department
0746 - Advanced Undersea MK-46 Maintenance Weapons Smith (SN-SCPO)
0812 - Small Arms Marksmanship Instructor (PO2-MCPO)
0814 - Crew Served Weapons (CSW) Instructor (PO2-MCPO)
0857 - 25mm Machine Gun System (MGS) MK 38 MOD Gun Weapon System (GWS) Technician (SN-PO1)
0870 - MK 46 MOD 2 Gun Weapon System (GWS) Technician (SN-SCPO)