Aircraft Eyes have a thinner head and smaller pin diameter for a given wire size. Seldom used on modern boats, older rigs may use Aircraft Eyes to attach to double tangs. Designed to match up with Aircraft forks to make a hinged connection.
1/8" Wire Dia.
3/16" Pin Dia.
316 Stainless Steel
Not to be confused with Marine Eyes, and not certified for aircraft use; it is a version of mil-spec MS20668 forks.