The Naval Surface Warfare Center (NSWC) Crane is seeking a firm fixed-price, sole source procurement for a TSI Incorporated Aerodynamic Particle Sizer, as only TSI holds the proprietary rights. The performance location is at NSWC Crane, with the contractor needing to be registered in the System for Award Management (SAM). Offers must be submitted by 3:00 PM Eastern Time on July 13, 2026. No budget amount is specified in the description. Interested parties may submit a capability statement for consideration, though the government may still proceed with the sole source award.