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Air Force AFSC · Medical

4N0X1 Aerospace Medical Service

Current service use not established

This code is listed in the directory. Inclusion alone does not confirm current service use.

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Overview

Aerospace Medical Service specialists assist doctors and care for patients in a wide range of medical situations. They administer immunizations and assist with aeromedical evacuations at medical facilities around the world.

Minimum ASVAB: G 55

ASVAB policy: Not policy-reviewed · coverage unknown · as of 2026-10-19

Program scope has not been reviewed.

Policy applicability and coverage of the program's score routes have not been reviewed. Shown-route arithmetic is not an eligibility decision.

Source: dafecd-atch4-2025-10-31 (source date 2025-10). Policy applicability has not been established.

See if you would hit this score: free ASVAB practice test

Skill levels: 4N011 helper · 4N031 apprentice · 4N051 journeyman · 4N071 craftsman

Core Skills

  • Patient care for flying and operational personnel
  • Patient care support during contingencies and disasters
  • Planning and evaluation of nursing activities

Civilian Career Paths

Career associations are editorial assessments of the cited evidence, not an official crosswalk unless the evidence explicitly says so. O*NET supplies civilian occupation information, not proof of a military match. Related experience does not confer civilian qualifications. Tasks and tools below describe civilian work, not military training.

Nursing Assistants

Providing routine patient care and supporting nursing activities transfers directly to bedside patient assistance.

How to prepare: Ask the nursing assistant registry in your target state to evaluate your military training records and identify any remaining training or examination steps.

What the civilian work involves
  • Turn or reposition bedridden patients.
  • Answer patient call signals, signal lights, bells, or intercom systems to determine patients' needs.
  • Document or otherwise report observations of patient behavior, complaints, or physical symptoms to nurses.
Civilian tools and software (examples)
  • Epic Systems
  • MEDITECH software

Paramedics

Contingency patient care provides relevant experience, with the strongest overlap for personnel who served in the listed 4N0X1H National Registry Paramedic assignment.

How to prepare: Have a paramedic program evaluate your existing EMS credentials and military education against the National Registry full-education pathway: current EMT-or-higher National Registry certification or state licensure, a CAAHEP-accredited or CoAEMSP Letter of Review program completed within two years with program-director verification, and the certification examination. State authorization to practice is separate from National Registry certification.

What the civilian work involves
  • Administer first aid treatment or life support care to sick or injured persons in prehospital settings.
  • Assess nature and extent of illness or injury to establish and prioritize medical procedures.
  • Comfort and reassure patients.
Civilian tools and software (examples)
  • eClinicalWorks EHR software
  • MEDITECH software

Neurodiagnostic Technologists

For personnel who served in the listed 4N0X1B neurodiagnostic assignment, that specialty experience directly overlaps civilian neurodiagnostic work.

How to prepare: Compare your documented neurodiagnostic training and procedure experience with a target laboratory's testing duties to identify gaps before applying; this close fit is specific to neurodiagnostic experience, not the general 4N0X1 designation.

What the civilian work involves
  • Conduct tests or studies such as electroencephalography (EEG), polysomnography (PSG), nerve conduction studies (NCS), electromyography (EMG), and intraoperative monitoring (IOM).
  • Monitor patients during tests or surgeries, using electroencephalographs (EEG), evoked potential (EP) instruments, or video recording equipment.
  • Explain testing procedures to patients, answering questions or reassuring patients, as needed.
Civilian tools and software (examples)
  • MEDITECH software

Notes & Sources

Evidence for this guidance (6 documents)
  1. DAFECD, 30 Apr 26: AEROSPACE MEDICAL SERVICE (4N0X1)

    [1] Specialty Summary section "AEROSPACE MEDICAL SERVICE"; normalized cached text lines 12788-12814; explicit AFSC match for 4N0X1

    Supports: Patient care for flying and operational personnel, Patient care support during contingencies and disasters, Planning and evaluation of nursing activities, Nursing Assistants (O*NET 31-1131.00), Paramedics (O*NET 29-2043.00), Neurodiagnostic Technologists (O*NET 29-2099.01)

  2. O*NET: Nursing Assistants

    [2] O*NET 30.3 occupational data

    Supports: Nursing Assistants (O*NET 31-1131.00)

  3. O*NET: Paramedics

    [3] O*NET 30.3 occupational data

    Supports: Paramedics (O*NET 29-2043.00)

  4. National Registry : Paramedic Full Education Program Pathway

    [4] Opening requirements list

    Supports: Paramedics (O*NET 29-2043.00)

  5. National Registry : Legal Differences Between Certification and Licensure

    [5] What if my state certifies, not licenses, EMS professionals?

    Supports: Paramedics (O*NET 29-2043.00)

  6. O*NET: Neurodiagnostic Technologists

    [6] O*NET 30.3 occupational data

    Supports: Neurodiagnostic Technologists (O*NET 29-2099.01)

Defense contractor jobs for 4N0X1

Predecessor codes

Historical codes with documented links to 4N0X1. Each history page explains the change.

90210Medical Service Helper90230Apprentice Medical Service Specialist90250Medical Service Specialist90270Medical Service Technician902X0Medical Service

Descriptions may be summarized for clarity. Verify all information with your branch career counselor or official military documentation before making career decisions.

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