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What is a 91E MOS?

Published in Military MOS 2 mins read

A 91E MOS, or Military Occupational Specialty, designates an Allied Trades Specialist within the U.S. Army, a role focused on essential metalworking and fabrication tasks.

Role of an Allied Trades Specialist

The 91E Allied Trades Specialist is a highly skilled individual responsible for the creation, maintenance, and modification of various metallic and nonmetallic components. This critical role ensures that essential equipment and structures are operational and safe, directly supporting military readiness and operations.

Key duties include:

  • Fabrication: Crafting new parts from raw materials, often involving precision cutting, shaping, and welding to meet specific needs.
  • Repair: Restoring damaged metallic and nonmetallic equipment, vehicles, and structures to functional condition. This involves diagnosing issues and executing precise fixes.
  • Modification: Adapting existing parts or systems to meet new specifications, improve performance, or customize them for particular operational requirements.
  • Supervision: Overseeing metalworking shop operations, which can include managing personnel, ensuring adherence to safety protocols, and maintaining tools and equipment.

This MOS requires a strong understanding of various materials, tools, and metalworking techniques to ensure the longevity and reliability of military assets.

Key Responsibilities and Skills

The responsibilities of an Allied Trades Specialist are diverse, requiring a blend of technical expertise and leadership qualities, particularly at higher ranks where supervision becomes a primary duty.

Responsibility Area Description
Fabrication Producing custom or replacement parts from blueprints or specifications using methods like welding, machining, and casting.
Repair & Maintenance Diagnosing damage and performing precise repairs on a wide range of metallic and nonmetallic components.
Shop Management Organizing and supervising daily operations within metalworking shops, including inventory control and equipment maintenance.
Quality Control Ensuring all fabricated and repaired items meet stringent military standards for safety and functionality.
Material Science Understanding the properties of different metals and nonmetals to select appropriate materials for specific tasks.

This role is vital for maintaining the operational readiness of the Army's vast array of equipment, from vehicles to infrastructure components, ensuring they perform reliably in diverse environments.

Further Information

For a comprehensive overview and additional details about the 91E - Allied Trades Specialist MOS, including potential civilian career opportunities, you can explore the official Army COOL (Credentialing Opportunities On-Line) website.