A good conduct knot/loop is an award device of the Department of the Army which denotes additional decorations of the Army Good Conduct Medal.
Good conduct loops were first created in 1941 and were based on the concept of the enlistment bar.
Good Conduct Loops have remained the primary method of displaying multiple bestowals of the Army Good Conduct Medal, and may be said to show how many "hitches" a soldier has served.
Thus, a silver clasp with two loops would denote the seventh award of the Good Conduct Medal while a gold clasp with five loops would indicate the fifteenth award of the Good Conduct Medal, which is the highest that the regulations list.
The U.S. Navy, U.S. Marine Corps, and U.S. Coast Guard display additional Good Conduct awards with service stars, while the U.S. Air Force uses oak leaf clusters.