MIL-STD-1863A, MILITARY STANDARD: INTERFACE DESIGNS AND DIMENSION FOR FIBER OPTIC INTERCONNECTION DEVICES (23 JAN 1985) [S/S BY MIL-T-29504, MIL-C-83522 AND MIL-C-83526]., This standard gives the standard interface designs and dimensions and termination types for use in fiber optic connectors and couplers for general military applications.