Product Information Material: Zinc Plated Steel Female Thread: JIC 37° Flare Select a Product Part NumberFemale Thread SizeWorking Pressure 0319-107/8"-143500 PSI 0319-69/16"-185000 PSI 0319-83/4"-164500 PSI 0319-47/16"-205000 PSI 0319-161-5/16"-123000 PSI 0319-121-1/16"-123500 PSI