This male nut fits to the hydraulic feed pipe, screws in to the hydraulic filter and seals with 27H6531 SEAL.
See item number 11 in the illustration.
Fitted to tractors:
Nuffield 425 Hydraulics - Leyland 154 Hydraulics - Leyland 184 Hydraulics - Leyland 235 Hydraulics - Leyland 302 Hydraulics - Marshall 302 Hydraulics