A.R. Hydraulic Fittings Pvt. Ltd. Manufactures National Pipe Thread - NPT Male Connector. A.R. Hydraulic Fittings Pvt. Ltd. Has been awarded ISO 9001:2000 certifications. A.R. Hydraulic Fittings Pvt. Ltd. Supplies precision engineered components and equipment such as pipe fittings, hose fittings, steel pipe fittings, stainless steel pipe fittings, industrial pipe fittings, etc. Which is used widely in mechanical and engineering industries. National Pipe Thread - NPT Male Connector is made of high grade steel and other alloys. National Pipe Thread - NPT Male Connector is widely used in numerous industries. These connectors provide high tolerance and excellent leak proof fitting. Known for durability and easy installation, it can be availed in various technical specifications or as specified by the clients.