SF400F Dixon Cast Brass (Open Snoot) Female Swivel Adapter - Pin Lug - 4" Female NST(NH) x 4" Female NPTFeatures: Double female rigid hexagon to swivel connection, rigid end thread is always NPT, hose thread is on swivel end. Finishes: P polished, C polished chrome plated. Part Number Female Swivel Thread Female Rigid Thread Weight (Lbs.) SF150F 1 1 2" Female NST(NH) 1 1 2" Female NPT 1. 1100 SF150S 1 1 2" Female NPSH 1 1 2" Female NPT 1. 1600 SF25F15T 2 1 2" Female NST(NH) 1 1 2" Female NPT 3. 76 SF25F20T 2 1 2" Female NST(NH) 2" Female NPT 2. 0500