This is a restricted solicitation for commercial items, anticipating a firm-fixed-price purchase order on a sole source basis to Hartwell Corporation for 45 each of a specific latch (NSN 1560-01-489-0068, P/N H2738-3). The applicable NAICS code is 336413 with a small business size standard of 1,250 employees. Offerors must provide clear traceability to the OEM, Hartwell Corporation, and submit a Certificate of Conformance IAW FAR clause 52.246-15; no drawings or specifications are available. Only quotations with shipping terms of F.O.B. Destination or F.O.B. Origin will be accepted, with EXW and Incoterms 2020 shipping terms excluded. All responsible sources may submit quotations for consideration.