This is a total small-business set-aside procurement for manufacture/design of a screen assembly identified as The Hellan Strainer Co. part 080-48-S04621, 8IN screen assembly, 1/16IN perf, with no separate technical drawings because the cited part number is fully descriptive. The contractor must comply with the ordering data, manufacturer/part-number requirements, mercury exclusion, document precedence, and government-acceptable inspection/quality-assurance requirements. Packaging must meet applicable MIL-PRF-23199, MIL-STD-2073, and cleanliness-control requirements when invoked. A Certificate of Compliance per DI-MISC-81356 must be submitted at the time of material delivery (end of contract), with separate certificates for each contract/order, NSN, and item nomenclature. Quoted pricing is requested to remain valid for 60 days unless otherwise specified.