PANAM - 6N-8N-FF-10K 3/8" NPT X 1/2" NPT Female/Female

3/8" NPT Female x 1/2" NPT Female, 10,000 psi Rated Steel Adaptor, Hexagon Socket, 316 Stainless Steel, Maximum Working Pressure 690 bar, PANAM These fittings within the industry are known as 10K fittings which have a 10,000 psi working pressure rating.