Definition
Definition of approved item name (AIN): "NUT,CAP,DUAL WHEEL MOUNTING"
A cylindrical-shaped nut, internally and externally threaded, with a flanged cone or ball seat and a square wrenching head. The internal threads are used to secure the inner wheel and the external threads receive the outer wheel securing nut.
Identification
Item Identification Guide (IIG) and Item Name Code (INC)