National K Works, Inc / NKW, Inc.
Oil and GasTexas, United States11-50 Employees
National K Works, Inc. (NKW) is a Houston-based manufacturer serving the oil, gas, and geothermal sectors with engineered, precision-machined components for high-pressure, high-temperature downhole wireline tools. Its product lineup includes HPHT-rated thermohousings, thermal flasks, heat shields, and pressure housings designed to perform in extreme environments. In addition to fabrication, NKW offers engineering services spanning design, manufacturability input, value engineering, and research, supported by thermal management analyses through CFD and FEA. The company maintains extensive testing capabilities, including pressure testing up to 33,000 psi, temperatures up to 2200F, dye penetrant and helium leak testing, calibration and re-certification of flasks, and inspection services. It also specializes in dissimilar metal welding and machining across a wide range of alloys, and provides two-stage light gun barrels with related engineering and testing support. Its work includes NASA Class 1 life-critical spaceflight hardware, heavy gun barrels, industrial sensor housings, and tooling, illustrating activity across demanding sectors.