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Hull Maintenance Technician (HT)

Navy Hull Maintenance Technician (HT): Definitive Guide

A Navy ship stays safe and strong because its metal parts, pipes, and tanks are kept in good condition. Hull Maintenance Technicians take care of this by fixing any damage caused by water, heat, and salt. They also help protect the ship after it has been damaged.

Job Role and Responsibilities

Job description

A US Navy Hull Maintenance Technician (HT) repairs and fabricates ship structures, hull fittings, and shipboard piping systems. You weld, braze, cut, and fit metal to restore strength and watertight integrity. You also maintain plumbing and marine sanitation systems and support the ship’s Quality Assurance work controls. (Hull Maintenance Technician)

Core responsibilities

HT work touches most spaces on a surface ship. Common responsibilities include:

  • Install and repair valves, piping, plumbing fixtures, and sanitation systems.
  • Repair decks, bulkheads, foundations, and hull structures.
  • Perform hot work like welding, brazing, riveting, and caulking.
  • Inspect welds and structures, and document results.
  • Use nondestructive test methods when qualified and assigned.
  • Repair ventilation ducts, insulation, and lagging.
  • Operate and maintain ballast control systems where assigned.
  • Run or support shipboard Quality Assurance requirements and records.
  • Enforce ship safety rules for hot work and confined spaces.

Daily tasks and workflows

A normal day starts with planned maintenance and job prep. You pull the Maintenance Requirement Card, check tag-out boundaries, and stage tools. You then verify the work package and QA requirements before cutting metal.

Work often runs in short, tight cycles. You measure, mark, cut, fit, and tack. You then weld and grind to final. Many repairs need leak checks or pressure tests before closeout. You also update logs and maintenance records after completion.

During shipboard drills, HTs support damage control. You may build shoring, patch piping, or help restore habitability. You also help keep repair lockers stocked and ready.

Fun fact: Did you know they’re nicknamed ‘Snipes‘? Here’s Why…

Tools, equipment, and technology

You use heavy, practical tools every day. The mix depends on the ship and the job.

  • Welding gear for stick and other processes.
  • Cutting tools like torches and saws.
  • Pipe tools like threaders, benders, and alignment clamps.
  • Measuring tools like squares, tapes, and levels.
  • Ventilation fans, fire watches, and gas monitoring support for hot work.
  • NDT equipment when assigned and NEC-qualified, such as ultrasonic or magnetic particle tools.

Team structure and reporting lines

Most HTs work inside the Engineering Department on surface ships. You commonly work in a repair division with related trades. You take daily direction from a Leading Petty Officer and the division chain. Larger jobs route through QA controls and a work control team.

Mission contribution

HTs protect the ship’s ability to fight and move. Sound hull structure supports survivability and damage control. Reliable piping and sanitation supports crew endurance. Clean QA records protect safety and readiness during inspections.

Specific roles and identifiers

Primary identifier(s)Specialization identifier(s)Notes
Rating: HTCommon HT-related NECs include U47A (Shipfitter), U52A (Pipefitter), U53A (Advanced Welder), U48A–U51A (NDT-related), plus some broad-duty NECs like 805A (Instructor) and 811A (3MC)NEC access depends on billet needs, paygrade, and school quotas.

Work Environment

HTs spend their time both in workshops and on the ship. Sometimes you work inside a shop area. Other times, you work outside in hot, cold, rainy, or windy weather. Ships keep working on maintenance even when the weather is bad.

The workplaces can be tough. Some jobs happen in very tight spaces like small holes, bilges, or tanks. Many areas are hard to reach and require you to hold your body in awkward positions. You may work near loud machines, steam pipes, or oily floors. You might also be near sewage pipes and sanitation systems.

Your schedule changes with ship life:

  • When the ship is moving, you have extra duties like watches, drills, and emergency work.
  • When the ship is in port, you still have duties and help with maintenance.
  • In shipyards, the work gets busier. You may work with outside workers and inspectors, and you might work longer hours to meet deadlines.

HT work involves using your hands and acting quickly. Small leaks can turn into big problems when at sea. This pressure is always there, especially on older ships. The good part is you can see the difference you make. You can point to a fix and know it is important.

Safety rules control the workday:

  • Hot work needs special setup, fire watchers, and good airflow.
  • Working in tight spaces requires checking the air and controlling who goes in.
  • Even simple fixes may need barriers, tagging out equipment, and quality checks.

If you like different types of work, this job suits you. You may weld in the morning, fix pipes after lunch, and help with a drill at night. If you prefer a quiet desk job, this job will challenge you.

Training and Skill Development

Initial training pipeline

HT training starts with the same foundation every new Sailor gets. After recruit training in Great Lakes, you go to technical training in the same area.

StageWhat you learnTypical locationTypical length
Recruit Training (Boot Camp)Navy basics, discipline, basic seamanship, fitness, and military living skillsGreat Lakes, IllinoisVaries by training cycle
Basic Engineering Common Core + “A” SchoolBasic mechanical theory and technical documentationGreat Lakes, Illinois13 weeks
HT Strand Technical SchoolDrafting, math, blueprint reading, QA basics, tools, shop safety, welding and pipefitting fundamentalsGreat Lakes, Illinois5 weeks

On-the-job qualification

Most HT learning happens after school. A-school gives foundations, not full ship mastery. You will qualify on tools, safety rules, and ship systems through structured programs and local requirements. You will also build speed through repetition.

You should expect heavy emphasis on:

  • Blueprint reading and measurements.
  • Welding setup, prep, and post-weld finishing.
  • Pipe repair methods and leak troubleshooting.
  • QA documentation and inspection discipline.
  • Tool control and shop organization.

Advanced schools and NEC growth

Later in your career, you can compete for advanced schools. These schools line up with higher-risk work and higher responsibility. The Navy tracks many of these through NECs listed in the HT career path.

Common advanced tracks include:

  • NDT-related NECs (U48A–U51A) for inspection roles.
  • Shipfitter (U47A) for complex structural repair.
  • Pipefitter (U52A) for advanced piping work.
  • Advanced Welder (U53A) for higher-skill weld jobs.

Instructor duty can also be part of the path. The career roadmap shows instructor NEC use in shore tours.

Skill development that matters most

HTs get better when they build judgment, not just technique.

  • You learn when to repair versus replace.
  • You learn how to prep metal so it stays fixed.
  • You learn how QA rules protect you and the ship.
  • You learn how to plan work so it finishes cleanly.

The rating is sea-centric, so leadership grows fast. You may supervise small work teams early. That happens because ships need repairs daily.

Physical Demands and Medical Evaluations

HT work is physical on purpose. You lift gear, drag hoses, and hold awkward positions. You climb ladders and work overhead. You also spend time kneeling, crouching, and crawling in tight areas.

Heat and noise are common stressors. Welding adds intense light and fumes. Grinding adds sparks and metal dust. Confined spaces can add humidity, low airflow, and limited exits. Your body needs stamina and calm focus, even when uncomfortable.

Navy fitness requirements for 2026

The Navy Physical Readiness Program uses a Body Composition Assessment plus a Physical Readiness Test. The PRT includes events like push-ups, forearm plank, and a cardio option such as the 1.5-mile run.

The program guide states the PRT is passed when a member earns Probationary or higher on each tested modality.

Youngest age bracket minimums (Age 17–19, altitude under 5,000 feet):

EventMale minimumFemale minimum
Push-ups4219
Forearm plank1:111:01
1.5-mile run12:4515:00

Commands often expect higher scores for competitive programs. Higher scores also support better evaluations and opportunities.

Medical screening and job-specific standards

The HT community lists entry standards tied to hearing, color vision, and security clearance eligibility. Normal color perception is required. Hearing thresholds are also listed as part of the community standards.

You should also expect periodic medical readiness checks. These may include hearing conservation monitoring and respiratory considerations due to welding and industrial exposure. Your command medical team may add job-focused surveillance based on your work environment and tasks.

Deployment and Duty Stations

HT is a ship-centered trade. The community career path labels it as sea centric. That means many billets are on deploying surface ships.

Sea and shore rotation

The HT career roadmap shows a common sea and shore rhythm measured in months. Early tours often alternate around 40-month sea tours and 36-month shore tours, with similar patterns later.

That pattern shapes your life more than the rating badge does. Sea time drives watchstanding, drills, and deployment schedules. Shore time often brings training billets, repair facilities, or recruiting and instructor duty.

Common duty station types

HT billets commonly exist in:

  • Surface ships and repair divisions.
  • Maintenance and repair activities that support fleet units.
  • Training commands and instructor roles later in career.
  • Ship support and inspection roles tied to QA and maintenance.

Deployment reality

Deployment length varies by ship, mission, and maintenance cycles. Some years run heavier than others. You should plan for long stretches away from homeport, plus shorter underway periods between major deployments.

What does not change is workload. Ships still break while underway. HTs still weld, patch, and rebuild when that happens. If you want a job that stays needed during deployments, HT fits.

Career Progression and Advancement

HT advancement follows the Navy enlisted promotion system. Performance, qualifications, and timing all matter. Evaluations drive promotion recommendations, and those recommendations affect eligibility and advancement competitiveness.

Typical career path milestones

The HT career path roadmap lists typical billets, qualifications, and NEC growth by time in service. It also shows common points where sailors pursue programs like LDO, CWO, or commissioning routes.

A practical way to think about progression is by what you own.

PaygradeWhat you usually “own”Common focus areas
E-1 to E-3Basic shop skills and safety habitsTool use, basic welding prep, basic pipe repairs
E-4 (HT3)Small jobs from start to finishWork planning, QA steps, documentation discipline
E-5 (HT2)Multiple jobs and junior trainingTeam supervision, tags and boundaries, repair locker readiness
E-6 (HT1)Shop leadership and major repairsQuality control, complex fabrication, mentoring
Chief (HTC) and aboveDivision-level readinessTraining plans, inspections, manning, long-range maintenance planning

The roadmap also shows common NEC and qualification targets, such as NDT NECs and advanced welding roles.

Time-to-advance signals

Community health sheets often show planning targets like time in service to paygrade. One HT community sheet lists TIS marks around 2.6 years to E-4, 4.2 years to E-5, and 8.5 years to E-6 as planning references.

Those are not guarantees. Manning levels and quotas move each year. Your performance still drives your personal outcome.

Evaluations and advancement mechanics

The Navy Performance Evaluation System uses graded traits and a promotion recommendation scale. That recommendation scale runs from “Significant Problems” up through “Early Promote.”

Advancement policy also ties to eligibility rules. The advancement instruction notes that certain ratings require security requirements to be met and properly recorded for eligibility during exam or board cycles.

Retention and reenlistment signals

Retention shifts with manning and incentive pay. One HT community sheet lists a FYTD reenlistment rate across zones and also lists bonus and incentive notes for the rating and for NEC U53A.

If you want to stay long-term, focus on hard qualifications. Welding skill, QA discipline, and leadership reputation tend to carry the most weight in this rating.

Salary and Benefits

Navy pay has several layers. Basic pay is fixed by grade and years of service. Allowances and special pays depend on duty location, ship status, and personal situation.

2026 basic pay examples for early HT careers

Most new HTs enter as junior enlisted, then advance with time and performance. These are monthly basic pay amounts, effective January 1, 2026.

PaygradeUnder 2 yearsOver 2 years
E-1$2,407.20$2,407.20
E-2$2,697.90$2,697.90
E-3$2,836.80$3,015.00
E-4$3,142.20$3,303.00

Key allowances and special pays

Some pay items are steady. Others change with orders.

Pay or allowanceWhat it coversNotes
BASFood allowanceEnlisted BAS is $476.95 per month starting Jan 1, 2026.
BAHHousing allowanceAmount depends on zip code, rank, and dependents.
Career Sea PaySea duty incentivePaid when assigned to qualifying sea duty. (Career Sea Pay)
Incentive and bonus programsRetention and hard-to-fill skillsThe Navy may publish HT incentives, including NEC-based incentives, in community messages and sheets.

Benefits that matter in practice

Benefits are real value if you use them well.

  • Medical coverage supports routine care and emergencies.
  • Education benefits can cover degrees and technical certs.
  • Leave policy provides paid time off each year.
  • Retirement systems reward long service and consistent saving.

HTs who plan ahead often do best. A steady budget plus smart use of education benefits can change your post-Navy options.

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Risk, Safety, and Legal Considerations

HT work has real hazards. Hot work can burn skin and start fires. Confined spaces can trap heat and fumes. Cutting and grinding can injure eyes and hands. Plumbing and sanitation work can expose you to biological hazards.

Safety controls are part of the trade. You will use PPE, ventilation, fire watches, and controlled boundaries. You will also follow QA rules that require documentation and inspection discipline. Those controls exist because shipboard mistakes can spread fast.

Legal obligations come with the uniform. You are subject to lawful orders and standards of conduct. You must also protect controlled information, especially when your billet requires clearance eligibility.

Advancement policy also reinforces the clearance requirement for ratings that require it. The advancement instruction describes security requirements tied to eligibility and proper tracking in security systems.

If you want low-risk office work, this rating will feel intense. If you respect safety rules and stay disciplined, the risk stays manageable.

Impact on Family and Personal Life

Ship life changes family life. Sea tours mean long stretches away. Even in port, duty days can interrupt weekends and holidays. Maintenance periods can also add long workdays.

Communication helps, but it is not perfect. You may have limited connectivity underway. Some ships have better access than others. That gap can strain relationships if expectations are unclear.

The rating itself adds a second stressor. HT work is urgent by nature. A failed pipe or structural defect can become a ship-stopper. That urgency can follow you home if you do not build good habits.

A few practices help most families:

  • Use shore time to reset routines and repair relationships.
  • Plan finances for gaps and surprises during deployments.
  • Keep an honest calendar for duty days and underways.
  • Build a support network early, not after problems start.

Dual-military situations add complexity. Orders, sea tours, and duty sections can collide. Early planning with the chain of command matters in those cases.

Post-Service Opportunities

HT skills translate well because they are measurable. Civilian employers understand welding hours, pipe fitting, and inspection work. They also value safety discipline and maintenance planning.

Civilian job matches with BLS outlook data

These examples align closely with common HT tasks. Wages and outlook figures below come from BLS Occupational Outlook Handbook data.

Civilian roleWhy it matches HT work2024 median payProjected growth (2024–2034)
Plumbers, pipefitters, and steamfittersShipboard piping, valves, leak repair, system troubleshooting$62,9704%
Welders, cutters, solderers, and brazersStructural repair, fabrication, hot work discipline$51,0002%
Sheet metal workersFabrication, duct work, layout, shop tools$60,8502%
Industrial machinery mechanics and relatedMaintenance mindset, troubleshooting under time pressure$63,51013%

How to set yourself up before separation

The best post-service outcomes come from deliberate choices on active duty.

  • Chase advanced welding and NDT opportunities when available.
  • Keep a clean record of work, quals, and leadership roles.
  • Build documentation habits like a civilian foreman would expect.
  • Use education benefits to earn trade credentials and credits.

The trade is portable. A strong HT can fit shipyards, utilities, construction, and industrial maintenance.

Qualifications and Eligibility

Basic entry requirements for active duty HT

Navy recruiting and community pages describe the baseline. Requirements can shift with policy and recruiting goals, but these are the common published standards.

CategoryWhat you generally need
CitizenshipUS citizen and eligible for a security clearance
EducationHigh school diploma or equivalent
ASVABVE + AR + MK + AS = 193 or VE + AR + MK + MC = 193
MedicalNormal color perception and hearing standards apply
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What recruiters and the Navy look for

The Navy calls out practical traits for HT applicants. You need comfort with tools and machines. You also need record accuracy and teamwork. Physical strength and steady hands help every day.

Selection and contracting reality

Availability depends on ship needs and accession quotas. Some months have more openings than others. Your ASVAB scores, medical status, and clearance eligibility all affect options.

How the process usually works

  • Talk with a recruiter about HT availability and contract options.
  • Take the ASVAB and complete MEPS medical screening.
  • Complete background screening tied to clearance eligibility.
  • Choose a shipping date and enter the Delayed Entry Program if offered.
  • Ship to recruit training, then proceed to HT technical training.
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Is This a Good Job for You? The Right (and Wrong) Fit

The right fit

HT is a strong fit when you like tangible work and clear standards.

  • You like fixing real problems with your hands.
  • You enjoy tools, measurements, and precision.
  • You stay calm when the job turns urgent.
  • You respect safety rules even when rushed.
  • You can lead a small team without ego.
  • You like shop pride and clean workmanship.

The wrong fit

HT will feel miserable if you want clean, quiet, or predictable days.

  • You avoid dirt, heat, noise, or tight spaces.
  • You dislike documentation and inspection controls.
  • You rush prep and hate “do it right” culture.
  • You shut down under pressure or criticism.
  • You want most work to happen indoors at a desk.

A simple self-check

If you can picture yourself welding a repair at 0200 and still caring about quality, you will probably thrive. If that sounds like punishment, another rating will fit better.

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More Information

If you wish to learn more about becoming a Hull Maintenance Technician (HT), contact your local Navy Enlisted Recruiter. They will provide you with more detailed information you’re unlikely to find online.

You may also be interested in the following related Navy Enlisted jobs:

Last updated on by Navy Enlisted Editorial Team