The National Institute of Standards and Technology (NIST) is conducting market research to identify sources capable of supplying two precision 1-circle segment stages (goniometers) for a neutron interferometer project. The stages must support a load of at least 50 kg, have a travel range of at least ±15 degrees, an angular resolution of at least 0.002 degrees, and a mass under 5 kg (excluding motor). Each stage must include a motor with a cable at least 1.5 meters long and a mounting surface of at least 150 mm by 50 mm with four tapped thru holes. No submission timeline or budget amount is specified in this sources sought notice. The location for performance is not mentioned.