"LPO" just stands for Leading Petty Officer.
Essentially it refers to the Petty Officer in charge of a division, but it can refer to smaller groups as well (platoon, company, flight, etc.). It can apply to any rating in the Non-commissioned Officer ranks, and to any rank from 3rd Class up to Master Chief.
It just depends on who's in charge.
I haven't heard that term when relating to the US Navy. But in the Royal Navy SDG is a scubadiver
MOS would be most interchangeable with Rate in the navy. Rate is pretty much another word for job specialty as is mos. Rate may also be referred to as a NEC.
submersible boat
The term "NAR" doesn't refer to a Navy ship - it's the standard Navy acronym for Naval Air Reserve.
FP1 means Pipe Fitter First Class. The 'FP' is the Rate (Pipe Fitter) and the '1' stands for the Rank (Petty Officer First Class).
Possibly a Flight Engineer
I haven't heard that term when relating to the US Navy. But in the Royal Navy SDG is a scubadiver
Yes. The Enlisted rate for medical personnel in the Navy is Hospital Corpsman (HM)
MOS would be most interchangeable with Rate in the navy. Rate is pretty much another word for job specialty as is mos. Rate may also be referred to as a NEC.
United States.
This is called a "rating" in the Navy. The AT denotes that person's rate, or job. In this case, it is an Aviation Technician. The 3 denotes that person's rank, which in this case, is a 3rd Class Petty Officer.
1949
"Rate" refers to a non commissioned member of the US Navy.
Not SSK3c, but SK3c is the old rate designation for Ship's Storekeeper, 3rd Class. The Storekeeper rate, one of the oldest in the Navy, has always used the designator SK. Today the rate/rank would be designated SK3.
SEa Air and Land
submersible boat
Landing Helicopter Assault