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U.S. NAVY ENLISTED RATINGS

From the BLUEJACKETS' MANUAL

Fifteenth Edition (1959)

APPENDIX B


Duties of Ratings - Pay Grades E-4 through E-9

Groups VII and VIII


A rating is an occupation in the Navy which calls for the same sort of skills and ability. The rating combines with a pay grade to form a rate. The following tables indicate the duties of Petty Officers:


Group VII - ENGINEERING AND HULL
MM
Machinist's Mate (MM)
Install operate, maintain, and repair ship's steam propulsion and auxiliary equipment, outside machinery, and refrigeration and air conditioning equipment.
EN
Engineman (EN)
Operate, maintain, and repair internal combustion engines and auxiliaries.
MR
Machinery Repairman (MR)
Perform duties of shop machinists, using precision machine and hand tools.
BT
Boilerman (BT)
Operate and repair all types of marine boilers and fire-room machinery. (1) BT's take care of all drinking water, boiler water, fuel oil, helo fuel, and made sure the ship is on an even keel by pumping oil from one side to the other. BT lab techs were referred to as "Water Kings".
BR
Boilermaker (BR)
Inspect and repair marine boilers and heat exchanges.
EM
Electrician's Mate (EM)
Maintain and repair power and lighting circuits, distribution switchboards, generators. and motors.
IC
I.C. Electrician (IC)
Maintain and repair shipboard interior communications systems.
SF
Shipfitter (SF)
Use hand and machine tools for steel metal work. Bend, repair and fit pipes
DC
Damage Controlman (DC)
Serve as technical assistants, instructors, and inspectors for fire prevention, fire fighting, damage control, and atomic, biological, and chemical warfare; perform carpentry duties.
PM
Patternmaker (PM)
Make wooden, plaster, or metal patterns, core boxes, and flasks used by molders in a Navy foundry.
ML
Molder (ML)
Operate foundries aboard ship and at shore stations; make molds and cores, rig flasks, prepare heats, and pour castings of metals; shot blast or sandblast castings, and pour bearings. 

Group VIII - CONSTRUCTION
SV
Surveyor (SV)
Make reconnaissance and preliminary and final location surveys for roads, airfields, pipelines, ditches, buildings, drainage structures, and waterfront construction.
CE
Construction Electrician's Mate (CE)
Install operate, maintain, and repair electrical generating equipment, distribution systems, interior wiring, lighting fixtures and telephone, public address, and interoffice communication systems.
EO
Equipment Operator (EO)
Operate, field-check, and service automotive and heavy construction equipment.
CM
Mechanic (CM)
Maintain, lubricate, repair, and overhaul automotive and heavy construction equipment and diesel and gasoline internal combustion engines.
BU
Builder (BU)
Construct, erect, maintain, and repair wooden and concrete structures.
SW
Steelworker (SW)
Rig and erect A-frames, gin poles, derricks, booms, and blocks and tackle; operate) winches and hoists in moving and hoisting operations; erect or dismantle bridges, buildings, tanks, towers, and pontoons.
UT
Utilities Man (UT)
Install operate, maintain, and repair pumps, stationary steam boilers, and water supply and sewage disposal equipment.

Changes Made
No.
Contributed by:
Date
(1)
David Miteff  BT3, 74-76
28 Feb 07

Take me to:
Definitions
E-1 to E-3
E-4 to E-9
Groups I-III

E-4 to E-9
Groups IV-VI

E-4 to E-9
Groups VII-VIII

E-4 to E-9
Groups IX-XII


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