It sits on the standard 0.100" (2.54mm) pitch grid, making it a drop-in fit for any 0.1-inch-spaced PCB pattern. Rated 5A per contact at 110V, with 30.0µin (0.76µm) gold plating on the mating surface — the gold thickness is enough for repeated mating cycles in field-serviceable equipment without risking contact fretting. The through-hole solder termination and 0.120" (3.05mm) post length suit it for standard PCB thicknesses; the overall 1.040" (26.42mm) contact length gives enough reach for a mid-board position.
The 0.100" pitch is the classic 2.54mm grid — every DIP IC and prototype board uses it, so the footprint is predictable. 66 positions loaded all means every pin hole on the two rows is populated; there is no optional empty position to verify against the BOM.