The National Institute of Standards and Technology (NIST) seeks sources for a Phase Grating Translation System to support neutron interferometer development, requiring two 3-axis translation systems with precision motion control. The system must include vertical and horizontal phase-stepping stages with sub-100 nm step sizes and a longitudinal stage with 200 mm travel and 10 µm resolution, capable of moving at least 25 kg. Performance of services is at the NIST Gaithersburg campus, with FOB Destination delivery. No budget amount is specified, and this is a sources sought notice for market research, not a solicitation.