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Navy NEC · Engineering

N15S Submarine Nuclear Propulsion Plant Supervisor: Mechanical

Current service use not established

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

A Navy Enlisted Classification: a skill designation sailors hold in addition to their rating.

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Overview

A Submarine Nuclear Propulsion Plant Supervisor specializing in mechanical systems supervises mechanical operations aboard submarines. The supervisor oversees safe operation, maintenance, and troubleshooting while leading personnel who work on propulsion plant mechanical equipment.

Core Skills

  • Watchstation-qualified submarine propulsion plant operations

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.

First-Line Supervisors of Mechanics, Installers, and Repairers

Qualified supervision of submarine nuclear propulsion plant maintenance transfers directly to oversight of equipment maintenance and repair work.

How to prepare: Build a maintenance-supervision portfolio showing the equipment, work scope, and personnel you supervised, using only releasable information.

What the civilian work involves
  • Inspect, test, and measure completed work, using devices such as hand tools or gauges to verify conformance to standards or repair requirements.
  • Inspect and monitor work areas, examine tools and equipment, and provide employee safety training to prevent, detect, and correct unsafe conditions or violations of procedures and safety rules.
  • Monitor employees' work levels and review work performance.
Civilian tools and software (examples)
  • Microsoft Excel

Nuclear Technicians

Demonstrated proficiency in submarine nuclear propulsion plant operation and maintenance provides a relevant foundation for nuclear equipment monitoring and testing.

How to prepare: Compare your documented watchstation qualifications with nuclear technician postings focused on equipment monitoring and testing to identify site-specific training gaps.

What the civilian work involves
  • Follow nuclear equipment operational policies and procedures that ensure environmental safety.
  • Monitor nuclear reactor equipment performance to identify operational inefficiencies, hazards, or needs for maintenance or repair.
  • Test plant equipment to ensure it is operating properly.
Civilian tools and software (examples)
  • Microsoft Excel

Notes & Sources

Evidence for this guidance (3 documents)
  1. NAVPERS 18068F Vol II (NEOCS, Jul 2026 edition): NEC group entry N13S - N16S Submarine Nuclear Propulsion Plant Supervisors

    [1] Group entry 'N13S - N16S - Submarine Nuclear Propulsion Plant Supervisors' with shared description and NOTES; cached text lines 8402-8404; individual N13S/N14S/N15S/N16S entries at lines 8438/8461/8484/8507 print the admin block (Source Rating ETN/EMN/MMN, Component NEC N13O/N14O/N15O/N16O, billet paygrades E5-E9) and watchstation NOTES (e.g. N14S NOTE 1: 'Specified Watchstations are: E-5/6 - Electrical Operator and Shutdown Reactor Operator; E-7/8/9 - Engineering Watch Supervisor'); PDF p.138-140

    Supports: Watchstation-qualified submarine propulsion plant operations, First-Line Supervisors of Mechanics, Installers, and Repairers (O*NET 49-1011.00), Nuclear Technicians (O*NET 19-4051.00)

  2. O*NET: First-Line Supervisors of Mechanics, Installers, and Repairers

    [2] O*NET 30.3 occupational data

    Supports: First-Line Supervisors of Mechanics, Installers, and Repairers (O*NET 49-1011.00)

  3. O*NET: Nuclear Technicians

    [3] O*NET 30.3 occupational data

    Supports: Nuclear Technicians (O*NET 19-4051.00)

Defense contractor jobs for N15S

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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