I picked-up cryo treated Pass & Seymour 5362-A (20A) Receptacles from Chris VenHaus website. Very reasonably priced; they arrived in two days w/ standard shipping, and the service was second to none. Receptacles are clearly top-notch construction, and they grip like a bear. Detailed description available at http://www.vhaudio.com/acreceptacles.html
Highly recommended!