The stainless steel external end includes a captured O-ring seal that provides a leak-tight connection, is about 11 mm long, and has a 5-mm hexagonal body. Typical applications include instrumentation devices, portable fuel cells, UAV aircraft, and medical and laboratory equipment.

Beswick Engineering Company, Inc., 284 Ocean Road Greenland, NH 03840, (800) 354-5014 www.beswick.com