5951 vs 6602
Aviation Meteorological Equipment Technician (USMC) vs Aviation Supply Officer (USMC)
Two Marines in the chow hall: one smells like the field, the other like hydraulic fluid. Both think they have it worse. Both are right.
The gap between "you'll maintain the weather observation equipment that Marine forecasters depend on" and what 5951s actually do could fill a Congressional hearing. Same goes for "you'll oversee multimillion-dollar aviation supply chains" and the 6602 experience. 5951 learns: the community is tiny — there are very few 5951 billets in the Marine Corps. On the other end of the spectrum: 6602 discovers: ' When an aircraft is grounded for a part, the entire chain of command knows, and the first question is always 'where's the supply officer? Both would defend the Constitution. Both have very different daily relationships with the government it created.
After the Uniform
The part the recruiter skips: what each job actually translates to once you're a civilian — and what it pays.
Salary data from the U.S. Bureau of Labor Statistics Occupational Employment and Wage Statistics program. A guide, not a guarantee.
Recruiter vs. Reality
The pitch versus what people who actually did the job report back.
“You'll maintain the weather observation equipment that Marine forecasters depend on — automated stations, wind sensors, ceilometers, and the data systems that feed into aviation weather forecasts. Every flight decision starts with weather data, and your equipment generates that data.”
You fix weather instruments. Ceilometers that measure cloud height, anemometers that measure wind, barometers, thermometers, humidity sensors, and the automated systems that collect and transmit the data. When the weather observation equipment is wrong, the forecaster's data is wrong, and flight decisions based on bad weather data can be dangerous. The community is tiny — there are very few 5951 billets in the Marine Corps. You will likely be stationed at air stations where METOC detachments operate. The work is a mix of bench electronics repair and field maintenance on instruments mounted on towers and observation platforms. Civilian translation exists but is niche — NOAA, the National Weather Service, and private weather companies use similar instrumentation, and someone who can maintain and calibrate it is valuable.
“Aviation Supply Officers manage the complex logistics that keep Marine Corps aircraft mission-ready across the globe. You'll oversee multimillion-dollar aviation supply chains, master repairable component management, and develop expertise that aviation and defense companies eagerly recruit. You are the unsung hero of Marine air power.”
You are an Aviation Supply Officer managing parts for aircraft that cost $80 million each, which means a single requisition error can ground an aircraft worth more than most people will earn in multiple lifetimes. Your readiness metrics are briefed to wing commanders and directly affect whether Marine aviation can execute its mission. You manage a supply chain that includes DLA, OEM procurement, lateral transfers from other units, and the creative cannibalization process where you rob one aircraft to keep another flying (and track every part with religious precision). Your supply Marines process thousands of transactions per month, and your inventory accuracy must support aircraft maintenance schedules that have zero margin for 'we'll get the part next week.' When an aircraft is grounded for a part, the entire chain of command knows, and the first question is always 'where's the supply officer?' You manage high-value repairable components worth millions, expendable items that cost pennies but are mission-essential, and hazmat materials that require specialized handling and documentation. The aviation supply mission is relentless because aircraft readiness never pauses. Civilian aviation logistics, defense contractor supply chain management, and airline parts management positions recruit Marine aviation supply officers at $75-110K.
The Real Life
Same dimensions, side by side. 5951 on the left, 6602 on the right.
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Managing aviation supply operations, overseeing procurement of aircraft parts, maintaining aviation-specific inventory systems, tracking repairable components, and ensuring aircraft maintenance shops have the parts they need. Aviation supply is more technical than general supply — you need to understand aircraft systems well enough to manage the parts that keep them flying.
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After TBS, Aviation Supply Officers attend specialized supply training focused on aviation logistics, DLA (Defense Logistics Agency) procedures, and aviation-specific supply systems. The training builds on basic supply officer skills with aviation-specific knowledge.
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Low to moderate. Aviation supply work is primarily warehouse and office-based, with some physical demands in managing aviation parts and equipment.
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Aviation supply officers manage the parts and logistics that keep Marine aircraft mission-capable. Without the right part at the right time, multi-million dollar aircraft sit on the deck doing nothing. The OSO won't lead with this MOS — supply isn't exciting on a poster. The reality: aviation supply chain management is a specialized skill that the civilian aviation industry values highly. Airlines spend billions on parts and maintenance logistics, and they need managers who understand the system. Your military experience managing aviation supply chains, DLA procurement, and readiness metrics translates directly. The work is administrative and can be bureaucratic, but the impact on aircraft readiness is tangible and the post-military career potential in aviation logistics is strong.
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