Length Bar Interferometry System and a Gage Block Interferometry System

The Department of the Navy Naval Sea Systems Command is procuring a Length Bar Interferometry System and a Gage Block Interferometry System, which are precision measurement systems designed to calibrate and certify reference-level length bars and gage blocks with direct traceability to the SI base unit definition of the meter. This is an all-or-none commercial item procurement with no partial quotes accepted, and offerors must be registered in SAM to submit quotations. The systems must meet stringent technical specifications including operating at a controlled temperature of 20°C ± 0.3°C, maintaining specific humidity and particle count levels, and achieving a total expanded measurement uncertainty of ± (1.8 + 0.06 x L) microinches for the Length Bar Interferometry System. Evaluation will be based on criteria outlined in sections L and M of the solicitation, with award going to the responsible offeror whose offer is most advantageous to the Government. Responses must be submitted electronically in PDF or MS Word format by January 12, 2026, with offerors directed to monitor the posting website for any amendments as no telephone inquiries are permitted.

This procurement is not set-aside for any specific business category, and no incumbent contractors are identified in the solicitation materials. No specific award value or budget range is disclosed in the announcement. The systems are expected to operate reliably for 1,500 hours of continuous operation annually with a minimum ten-year operational lifetime and minimal preventive maintenance requirements. The place of performance is San Diego, California 92135, and the systems are intended for use by Navy civilian personnel at the Navy Primary Standards Laboratory. Offerors must also comply with multiple Contract Data Requirements Lists covering calibration certifications, inspection and test plans, software version descriptions, technical manuals, spare parts lists, training syllabi, and software/firmware change requests, with specific submission timelines established relative to initial operating capability.