From the Manufacturer
Leviton's line of Extra Heavy-Duty Industrial Grade locking receptacles are designed and manufactured to withstand the harsh conditions typically associated with industrial environments. Available in a wide variety of configurations, including isolated ground, tamper-resistant, hospital grade, etc., these Industrial Grade devices are the electrical contractor's choice for use in factories, schools, hospitals and commercial office buildings. 15 Amp, 125 Volt, Industrial Series Heavy Duty Specification Grade, Duplex Receptacle, Straight Blade, Self Grounding, White.
15 Amp, 125 Volt, NEMA 5-15R, 2P, 3W, Narrow Body Duplex Receptacle, Straight Blade, Industrial Grade, Self Grounding, , Back & Side 8 Hole Feed-Thru Wired, Steel Strap - White, UPC: 07847781956