This is a sources sought notice for manufacturing an aircraft ultrasonic block (NSN 6635-01-503-0082), with a quantity of 12 units. The notice requests information on capable manufacturers, including their city, state, and points of contact. Responses must be submitted to the primary point of contact, and all Source Approval Requests (SARs) must be submitted via a DoDSafe link obtained by emailing a specific address. The only currently approved source is Bell Textron Inc. (CAGE 97499).