Type D-2 Kollsman 24V Heated Aircraft Pitot Static Tube. P/N 373D-02. Alternate P/Ns 1960-02, 373H02, AN5814-2, MIL-T-5420, PST305, PT100, T5420ATYPE1. NSN: 6610-00-526-7853. It was removed from a salvage aircraft. Continuity tested ok.