This is a total small business set-aside procurement for manufacturing/design of a pressure regulator, part number 26-1121-382, originally manufactured by TESCOM CORP (13669), with the cited part number fully descriptive and no separate technical drawings. The regulator must meet specified design, material, dimension, mercury-exclusion, quality-assurance, inspection, packaging, and marking requirements, including applicable MIL-PRF-23199 and cleanliness-control standards. The contractor must maintain a government-acceptable inspection system and keep inspection records available. A Certificate of Compliance per DI-MISC-81356 must be submitted with material delivery, with first submission at end of contract. Delivery is FOB destination, and quoted pricing must remain valid for 60 days unless another period is specified.