This is a contract for the manufacture of an O-RING, .500 TUBE, part number MS28778-8. The delivery timeline is 90 days from contract issuance. The performance location is not specified. The contract requires strict adherence to military standards for manufacturing, marking, configuration control, and shelf-life, with items needing at least 85% of their shelf-life remaining upon government receipt. Government source inspection is mandatory, and the award is set aside for small businesses.