Machinist

The 2161 Machinist sits inside Occupational Field 21, Ground Ordnance Maintenance, but the work is pure metal trade. You set up and run engine lathes, vertical and horizontal mills, surface and cylindrical grinders, drill presses, saws, and line-boring machines to fabricate, repair, or modify parts for weapons, motor transport, and engineer equipment. You work straight off blueprints, sketches, and written specs, hold tolerances with micrometers, vernier calipers, bore gauges, and dial indicators, and back it all up with standard welding equipment when a repair calls for it. When a part is out of production or the supply chain cannot deliver fast enough, the machine shop makes it. That is the job.

The pipeline runs through the Basic Machinist Course at the Marine Corps Detachment, Fort Lee, Virginia, trained as a consolidated Inter-service Training Review Organization (ITRO) phase alongside Army machinists. It opens with shop math, blueprint reading, and bench work, then moves into manual lathe and mill operations, grinding, and precision measurement. Marines coming out of that course can read a drawing with geometric dimensioning and tolerancing callouts, dial in a setup, and produce a part that passes inspection. That combination, the ability to interpret an engineering drawing AND cut the metal to it, is exactly what civilian shops are short on.

This page is for the Marine who held 2161 and is figuring out the civilian move. It is different from the 2111 Small Arms Repairer/Technician path. A 2111 is an armorer who diagnoses and repairs weapons as assemblies. A 2161 makes and reworks the precision metal parts those systems are built from. If you also ran engineer or motor transport repair shops, the 1341 Engineer Equipment Mechanic page covers the mechanic side of that house. To compare civilian matches across every branch, start at the military career crosswalk, and if your bullets still read like a T&R event instead of a job, the guide to converting evals into resume bullets is the fastest fix.

BMR has built more than 60,000 resumes, and precision machinists are one of the cleaner translations I see. The skill is in high civilian demand, so the resume rarely has to argue the case. It mostly has to name the equipment and tolerances in civilian terms, lathe, mill, surface grinder, GD&T, plus or minus .0005, instead of leaving them buried under an MOS code a shop foreman will never decode. — Brad Tachi, Navy Diver veteran & BMR founder

Skilled machining is one of the tighter labor markets in U.S. manufacturing. The Bureau of Labor Statistics projects employment of machinists and tool and die makers to edge down about 2 percent from 2024 to 2034, yet still expects roughly 34,200 openings each year over the decade, driven almost entirely by replacement as an aging workforce retires. Translation: shops are competing for people who can actually run the machines, and a Marine who already holds tolerances under combat-equipment timelines walks in ahead of a fresh trade-school graduate.

Machinist (O*NET 51-4041.00) is the direct line. BLS reports a median wage of $56,150 (May 2024), with the strongest pay in aerospace, defense, and medical-device shops. CNC Machinist work maps to the same occupation; your manual-lathe and mill foundation is what lets a shop trust you to set up and prove out a CNC program rather than just push the green button. Tool and Die Maker (O*NET 51-4111.00) is the step up in both precision and pay, at a median of $63,180, building the dies, jigs, and fixtures other machinists run.

Maintenance and inspection paths open the same door from a different side. Industrial Machinery Mechanic / Millwright work sits in a much faster-growing field, projected up 13 percent through 2034, with a median of $63,510, and rewards the diagnostic side of ordnance maintenance more than the cutting side. Quality Control Inspector (O*NET 51-9061.00), median $47,460, is a natural landing spot for a machinist who lived on micrometers and CMM-style verification. Defense and shipbuilding employers value the background directly, which is why this work overlaps with the Navy Hull Maintenance Technician and Air Force Aircraft Metals Technology civilian markets. Be realistic about geography: the best-paying jobs cluster around aerospace and defense manufacturing hubs (the Northeast, Upper Midwest, Texas, and the West Coast), and pay tracks the precision of the work more than the title. To put a number on your own move, the military pay to civilian salary guide is a useful gut check, and you can line your skills up against open roles with the military resume builder. When you are ready to apply, build your resume now.

Most civilian federal machinist billets are classified under the Wage Grade (WG) system rather than General Schedule (GS), so a USAJOBS search for a hands-on machine-shop job at a depot, shipyard, or arsenal should include WG-3414 Machining and WG-3416 Toolmaking. Those trade series exist in the federal classification and are where the actual lathe-and-mill work lives. The GS side of the house is where a 2161 background converts into a salaried technical track once you want to step off the floor.

GS-0802 Engineering Technician is the broadest fit. Depots and engineering activities hire 0802s to build prototypes, run test articles, and translate engineering drawings into producible parts, which is the part of your job you already did daily. GS-1910 Quality Assurance is the inspection track: source inspection, first-article verification, and dimensional conformance on government contracts, where micrometer-and-GD&T fluency is the core qualification. GS-1601 General Facilities and Equipment covers equipment-program and shop-management roles at installations. Stronger technical reach-ups include GS-0830 Mechanical Engineering support positions and GS-1101 General Business and Industry for industrial-operations and production-planning roles tied to a manufacturing mission.

Veterans' Preference applies across all of these, and it is a real thumb on the scale once you clear the qualification bar, so the resume has to prove the bar first with months, hours per week, and grade-level duties spelled out. Federal hiring rewards specificity that civilian resumes bury. The same 0802 and 1910 targets show up for the Navy Machinery Repairman and Coast Guard Machinery Technician crowds, so those pages are worth a look for shared GS strategy. For the mechanics of a federal application, read how to find your military job series equivalent on USAJOBS and the veterans preference points breakdown, then format the application itself with the federal resume builder.

If you are staying in machining, manufacturing, or a depot environment, your terminology already translates. A shop foreman knows what a four-jaw chuck and a .0005 tolerance are. This section is for the Marine targeting a job OUTSIDE the trade, where a hiring manager reads "2161" and "Ground Ordnance Maintenance" and sees nothing they can use.

The fix is naming the civilian equivalent of what you actually did. The work was precision manufacturing, quality control, and process discipline. Here is how that reads outside the shop:

Military framing	Civilian framing
Fabricated parts to GD&T blueprints on lathe and mill	Precision machining of components to engineering drawings, holding tolerances to plus or minus .0005 inch
Verified parts with micrometers and bore gauges	Dimensional inspection and quality conformance using precision metrology instruments
Ran the machine shop's PMCS schedule	Preventive maintenance program for capital equipment, minimizing unplanned downtime
Reverse-engineered an out-of-production part	Developed manufacturing process and tooling for a part with no existing drawing

Before: "Operated lathes and mills to fabricate weapons system parts for OccFld 21 ground ordnance maintenance."
After: "Machined precision metal components to engineering specifications using manual and CNC lathes and mills, holding tolerances to plus or minus .0005 inch, and verified conformance with micrometers, calipers, and bore gauges before release."

That second version is what a manufacturing recruiter, a quality department, or a production manager can score. For more conversions, the 50 military terms translated to civilian language glossary and the broader guide to explaining military experience without jargon cover the interview side. To rewrite your own bullets in this format, run them through the military resume builder or just get started here.