NSWC Crane requires a Celestron VF Gold Package under a sole-source, brand-name-only procurement. The Government intends to solicit and negotiate only with Thermo KeyTek LLC under FAR Part 12 because the items are peculiar to one manufacturer. The notice was issued on 20 Oct 2026 as a written synopsis exception with the solicitation attached. All responsible sources may submit a capability statement for consideration, though the Government retains discretion on whether to compete the requirement. Contractors must be registered in SAM, and offers should be emailed to trista.m.ray.civ@us.navy.mil.