Midland Metal 20620N Internal Hex Straight Adapter, 4 mm Push-In x 1/8 in Male Metric, Brass, Nickel-Plated

Internal Hex Straight Adapter, Connection Size 1: 4 mm, Connection Type 1: Push-In, Connection Size 2: 1/8 in, Connection Type 2: Male Metric, Brass, Nickel-Plated, 1/8-22 Thread, 0.43 in Hex, 0.71 in L, 0 to 290 psi, -4 to 176 deg F