10th Mountain Division Combat Service Identification Badge Regimental Corps Crests Some Machinist's Mates are also

Some Machinist's Mates are also trained in Health Physics and maintaining of reactor chemistry for their work required for the maintenance of the machinery involved with nuclear reactors

Double-needle stitching

United States Navy Miniature Chief Petty Officer Identification Badge

Supply Corps officers can be members of a ship or shore activity's supply department or can be billeted into supply units/commands

On occasion

10th Mountain Division Combat Service Identification Badge Regimental Corps Crests Some Machinist's Mates are alsoUnited States Army 10th Mountain Division Combat Service Identification Badge Criteria: The Combat Service Identification Badge (CSIB) identifies a U. S. Soldier's unique combat service with a specific Army unit. The CSIB is authorized for immediate use on the new dress blue Army Service Uniforms (ASUs), dress green Class A, Army Service Uniform Class B, and the transitioning (old) blue uniform. The CSIB is not authorized for wear on the Army Combat