https://www.aircraftspecialties.aero/reducer-external-thread-aluminum-thread-size-from-3-8-1-4-an919-6d/?setCurrencyId=3
Reducer, External Thread, Aluminum, Thread size from 3/8 - 1/4 - AN919-6D - Aircraft Specialties...
Reducer, External Thread, Aluminum, Thread size from 3/8 - 1/4 - AN919-6D