Ferrari Part 3.3513.0200.1 Union in Ferrari 365 GTB4 Daytona (1969) (Mechanical Table 044A Brake System (1972 Revised))

Ferrari part number 3.3513.0200.1, UNION, shown here as used in a Ferrari 365 GTB4 Daytona (1969) (Mechanical Table 044A Brake System (1972 Revised)).