... sample and convenient.Product ordering X 14 K 4 P J, 1 2 3 4 5 61. Name of series: X series ... small circular connectors 2. Shell size: 143. Type of contacts: J-pin, K-socket 4. Sign of contacts: numbers (3/4 ... , M-sealed receptacle 6. P-plug, A-socket/jack/receptacle7. J-Au plated, without J: Ag plated