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Navy Rating · Engineering

FN Fireman

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

A Fireman stands engineering watches and cleans, paints, and preserves engineering spaces and equipment. This sailor performs minor maintenance and repairs, operates tools and test equipment, records gauge readings, and uses engineering drawings.

Minimum ASVAB: AR+MK+MC+VE 193 or AR+AS+MK+VE 188

ASVAB policy: Not policy-reviewed · coverage unknown · as of 2026-10-22

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: milpersman-1306-618-rating-list-2026-04 (source date 2026-04). Policy applicability has not been established.

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

Core Skills

  • Engineering watchstanding and gauge reading
  • Minor engineering equipment maintenance and repair
  • Engineering drawing interpretation and use
  • Engineering space and equipment preservation

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.

Sailors and Marine Oilers

Engineering watches, recorded gauge readings, and minor shipboard equipment maintenance transfer directly to the engine-room side of marine oiler work.

How to prepare: Check National Maritime Center requirements for entry-level engine-room work and the endorsements needed for your intended vessel service. Most water transportation jobs require a Transportation Worker Identification Credential and Merchant Mariner Credential with related endorsements, and open-ocean service requires USCG-verified STCW training.

What the civilian work involves
  • Read pressure and temperature gauges or displays and record data in engineering logs.
Civilian tools and software (examples)
  • Computerized maintenance management system CMMS

Maintenance and Repair Workers, General

Minor engineering equipment repairs, tool and test-equipment use, and engineering drawing interpretation provide a direct foundation for routine machinery maintenance.

How to prepare: Seek supervised maintenance work that builds on minor repairs while developing machinery inspection and fault-diagnosis skills.

What the civilian work involves
  • Perform routine maintenance, such as inspecting drives, motors, or belts, checking fluid levels, replacing filters, or doing other preventive maintenance actions.
  • Inspect, operate, or test machinery or equipment to diagnose machine malfunctions.
  • Repair machines, equipment, or structures, using tools such as hammers, hoists, saws, drills, wrenches, or equipment such as precision measuring instruments or electrical or electronic testing devices.

Stationary Engineers and Boiler Operators

Engineering watchstanding, gauge recording, and minor equipment maintenance support the monitoring and upkeep portions of stationary plant operation.

How to prepare: Check the licensing rules for the state or city where you plan to work before choosing boiler-operation training. Some jurisdictions require licenses tied to equipment type and size, usually with experience requirements and a written examination.

What the civilian work involves
  • Operate or tend stationary engines, boilers, and auxiliary equipment, such as pumps, compressors, or air-conditioning equipment, to supply and maintain steam or heat for buildings, marine vessels, or pneumatic tools.
  • Observe and interpret readings on gauges, meters, and charts registering various aspects of boiler operation to ensure that boilers are operating properly.
Civilian tools and software (examples)
  • Building management system software

Notes & Sources

Evidence for this guidance (6 documents)
  1. NAVPERS 18068F Vol I (NEOCS, Jan 2026 edition): FIREMAN (FN)

    [1] Rating chapter "SCOPE OF RATING"; cached text line 37773; NAVPERS 18068F Vol I, 2026-01 edition

    Supports: Engineering watchstanding and gauge reading, Minor engineering equipment maintenance and repair, Engineering drawing interpretation and use, Engineering space and equipment preservation, Sailors and Marine Oilers (O*NET 53-5011.00), Maintenance and Repair Workers, General (O*NET 49-9071.00), Stationary Engineers and Boiler Operators (O*NET 51-8021.00)

  2. O*NET: Sailors and Marine Oilers

    [2] O*NET 30.3 occupational data

    Supports: Sailors and Marine Oilers (O*NET 53-5011.00)

  3. Bureau of Labor Statistics: Water Transportation Workers

    [3] How to Become; training, licenses and related experience; updated August 27, 2026, checked September 23, 2026

    Supports: Sailors and Marine Oilers (O*NET 53-5011.00)

  4. O*NET: Maintenance and Repair Workers, General

    [4] O*NET 30.3 occupational data

    Supports: Maintenance and Repair Workers, General (O*NET 49-9071.00)

  5. O*NET: Stationary Engineers and Boiler Operators

    [5] O*NET 30.3 occupational data

    Supports: Stationary Engineers and Boiler Operators (O*NET 51-8021.00)

  6. Bureau of Labor Statistics: Stationary Engineers and Boiler Operators

    [6] How to Become a Stationary Engineer or Boiler Operator; Licenses, Certifications, and Registrations; page dated 2026-08-27, retrieved 2026-09-23

    Supports: Stationary Engineers and Boiler Operators (O*NET 51-8021.00)

Defense contractor jobs for FN

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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