American Micro Products Inc (AMPI) is a wise choice for your glass-to-metal needs. American Micro Products, Inc. is a world class manufacturer of circular, glass-to-metal, hermetically sealed connectors. Our Qualified Products List (QPL) consists of MIL-C-26500 Bayonet and threaded, MIL-C-83723 Series III, MIL-C-38999 Series I, II and III. Call CPN/Denelex today for your Hermetic solution off the shelf.