Description Male NPT or MPT fitting. National Pipe Thread this is designed to weld to a 4.0 inch O.D. stainless tube. Weld-on style requires professional welder 4.0 inch dimensions Tube O.D. = 4.0 inch (size of O.D. tubing to weld onto) Can be welded to fitting below to make an adapter to go from a milk tank outlet valve to male pipe thread for bio-diesel or other non food uses. Be sure an add the Hex nut before you weld the 2 pieces together. order nut, adapter and ferrule separately 81560302 4999-1000-364 19WB4.0 Related Items; 1000-387 Male Bevel Seat Weld On ferrule 1000-394 - 4.0 inch Stainless Steel Hex Nut
