This is a sole source procurement from Sikorsky Aircraft Corporation for five units of an electrical strip (NSN 6150 016901797) used on the CH-53K helicopter. The government lacks drawings or data and considers Sikorsky the only approved source, so other firms must submit a Source Approval Request (SAR), but award will not be delayed for SAR approval. All responsible sources may submit capability statements, proposals, or quotations for consideration. The solicitation will be issued under FAR Part 15 procedures, not commercial item acquisition, and will include UID and Buy American requirements. This procurement is not a total small business set-aside.