Product Information Material: Zinc Plated Steel Female Thread: NPSM Male Thread: NPTF Select a Product Part NumberFemale Thread SizeMale Thread SizeWorking Pressure 1501-12-81/2"-143/4"-142500 PSI 1501-6-81/2"-143/8"-184000 PSI 1501-12-161"- 11-1/23/4"-142000 PSI 1501-16-201-1/4"- 11-1/21"- 11-1/21150 PSI 1501-6-63/8"-183/8"-184000 PSI 1501-16-123/4"-141"- 11-1/22000 PSI 1501-4-41/4"-181/4"-184500 PSI 1501-8-63/8"-181/2"-143000 PSI 1501-6-41/4"-183/8"-184000 PSI 1501-12-123/4"-143/4"-142500 PSI 1501-16-161"- 11-1/21"- 11-1/22000 PSI 1501-4-63/8"-181/4"-184000 PSI 1501-8-123/4"-141/2"-143000 PSI 1501-8-81/2"-141/2"-143000 PSI 1501-20-201-1/4"- 11-1/21-1/4"- 11-1/21150 PSI 1501-2-21/8"-271/8"-275000 PSI