Definition
Definition of approved item name (AIN): "PIN,GROOVED,HEADLESS"
A headless item of various shapes, usually cylindrical, having either circular or longitudinal groove(s). Its length must not exceed 12 inches (304 mm). Excludes rod, grooved, headless; shaft (as modified); and pin, vehicular leaf spring shackle.
Identification
Item Identification Guide (IIG) and Item Name Code (INC)