The 2-1/2-12 Male O-Ring x 2 Female National Pipe Straight Mechanical Adapter is a high-performance hydraulic fitting designed to connect male O-ring boss threads to female NPSM threads. This adapter provides a secure, leak-resistant connection in high-pressure fluid, hydraulic, and industrial applications. Specification Value TYPE Male O-Ring x Female National Pipe Straight Mechanical Adapter DESIGN Leak-Free Design, O-Ring ensures a tight and high-pressure seal. MATERIAL Steel for strength and corrosion resistance MATERIAL CONSTRUCTION Steel WEIGHT (lbs) 4.4 CONNECTION SIZE 1 2-1/2" CONNECTION SIZE 2 2" CONNECTION TYPE MAORB|FNPSM Swivel CONNECTION TYPE 1 Male Adjustable O-Ring Boss CONNECTION TYPE 2 Female NPSM Swivel FITTING TYPE 90-deg Elbow MAXIMUM OPERATING TEMPERATURE 1450 psi OPERATING TEMPERATURE 375 deg F SERIES 6901-NWO THREAD SIZE 2-1/2-12 STANDARD APPROVALS SAE 140257 APPLICATIONS Ideal for, Oil, Fuel, and Coolant Transfer, Heavy Machinery & Equipment, Hydraulic Systems, Automotive & Marine. BRAND Midland Industries Link to Midland Industries Catalog