Nomad N02/NE/TF/PTV for Wilden brand pumps. Replaces Wilden P/N 02/NE/TF/PTV Contains: (2) N02-1010-51 Diaphragm, Neoprene (4) N02-1080-55 Valve Ball, PTFE (4) N02-1120-20-400 Valve Seat, Polypropylene (4) N02-1200-60-400 Valve Seat/O-Ring, Viton Encapsulated. - Alternate Part Numbers: Pumper Parts PP02/NE/TF/PTV