KRD PERFORMANCE Aluminum -6AN AN6 Male Flare to 5/8 x 18 Male Thread Inverted Seat Adaptor Fittings Male Inv Flare Connector, Black. 6AN (9/16-18) male flare to male thread 5/8" x 18 inverted. These adaptors and allow easy connection of AN male fittings to applications where the fitting is required to seal on the inverted seat.
