Welcome to Seco Seals Seco Seals was started in 1969 specializing in the manufacture and sale of Conical Seals for 37 degree flared tube fittings. Jim Scott, Sr. helped develop the Conical Seal in the late 1950's for the early space program. Today Seco Seals still manufactures and sells the SECO7 as well as other metal tube fitting gaskets. Seco Seals is the world leader in specialty manufacturing of high pressure tube fitting gaskets for aerospace flight applications. Seco Seals makes gaskets for NASA, Boeing. Lockheed and most major defense and aircraft companies. Seco Seals plans to expand its capabilities for build to printsealing solutions for extreme pressure and temperature applications. Seco Seals products are usually made of the highest quality metal foils between.002and.015 . As a ISO-9001-2000 certified gasket manufacturer, Seco Seals plans to continue its 37 year record of 100% inspection and reliability of its products. We believe our quality and customer service are essential in helping to make our customer's products 100% reliable. Seco Seals gaskets are designed to work 100% of the time, never wear out or need replacing in most situations. Make Seco Seals your choice for gaskets in Mission Criticalapplications.