Used on 6640-01-608-4180. inlet/outlet drain plug C43 plug, tube fitting flareless (note: drilled hole is optional should not be considered as a separating characteristic)
Used on H-46. 16 1st end bulkhead thread quantity per inch adapter bulkhead permaswage to-male flarless flared w/ bulkhead thread unjf 1st end bulkhead thread series