#6 [3/8″] MALE O-RING SWIVEL 5/8-18 THD TO #6 [5/16″ I.D.] HOSE 90 DEG FITTING KIT WITH CAGE AND O-RINGS. Made in America A/C fittings validated to SAE J2064 standards. One piece roll formed steel tube, non-brazed stem. Two O-rings for seal insurance. Rigid self-locating one piece cage to replace the original OEM bubble crimp coupling. A single cage is included per fitting kit and two cages for hose splicer kits. Pilot and Stem O-Rings are included within the fitting kits (uninstalled). Cages and O-Rings are sold separately or in 12 packs.