TELEPHONE PLUG/U174/U, commercial, non mil spec, 4 conductor, overall diameter of plug housing .500 inch, overall length: 1.906 inch, contact diameter: .281 inch , plug contact length: .761 inch. TP-120

Dimensions: 1.906 x 1/2 inNumber of Conductors: 4Contact Dimeter: 0.281 inContact Length: 0.761 inShell Material: PlasticContact Material: nickel-plated brassSolder Contact Terminals: pre-tinned over nickel platingContact Resistance: ≤ 0.02ΩInsulation Resistance: ≥1,000 MΩDielectric Withstanding Voltage: ≥ 500 V RMSInsertion Force: 13 lb, maximumWithdrawal Force: 6 – 10 lb