PCB Mount Sockets Specification Sheets
Access Communications Pty Ltd strongly suggests that pre-production dimension-verification with sample stock occurs before PCB production commences.
The two rows of contact-pins are always spaced 2.54mm apart. The pin to pin distance (within the same row) can be either 1.02mm or 1.27mm. A hole diameter of 0.8mm will accommodate the contact-pins of most sockets.
Click on an image for a PDF drawing and specification.