There isn't one. First Sergeant isn't an MOS - you don't enlist as a First Sergeant. It's a rank and position which is achieved through time and experience. It doesn't change the holder's MOS - if they were, say, 68 series, 88 series, 11 series, etc., they would retain that CMF identifier. What does change is that, when one is promoted to E8, they're no longer considered specific to a certain MOS, but rather, a generalist in the entire field. So, if someone were 68W (Healthcare Specialist) and were promoted to E8, they would no longer be 68W, but rather, 68Z, making them a generalist in the entire Career Management Field.
68Z
Really depends on MOS (occupation), turnover of that occupation, etc. Typically, after ten years, most personnel hold the rank of Staff Sergeant, and a fair number will hold the rank of Sergeant First Class.
The '3' indicates skill level 3, which would be the rank of Staff Sergeant. A Staff Sergeant would be a squad leader, or a Staff Sergeant with seniority or who is close to promotion to Sergeant First Class might fill the role of Platoon Sergeant. They might also work as a staff NCO in a battalion/brigade/division/etc. shop, which wouldn't be a leadership position.
Mos stands for military operational specialty and MOS 6100 is the code used for Helicopter/Tilt-rotor Mechanic-Trainee.
Mos stands for military operational specialty and MOS 6100 is the code used for Helicopter/Tilt-rotor Mechanic-Trainee.
There is no such rank as "First Class Sergeant". You have either Sergeant First Class, which is E7, or First Sergeant, which, along with Master Sergeant, is E8.
mos mosh
It depends on the duties.MOS is rank specific only in the last several characters. MOS is always job specific.
Medical Entomologist
MOS 76Y is Unit Supply Specialist. Rank is Staff Sergeant (E-6). No special qualifications.
YES
First sergeant
First Sergeant (E8).