Adapter system for fiber optic connectors

An adapter assembly for mating a fiber optic connector along an optic axis with a complementary connecting device, comprising:

• a pair of adapter halves secured together at an interface by means of a pair of securing posts projecting between the adapters at said interface generally parallel to and at opposite sides of the optic axis and into a respective pair of securing holes, each securing post having a retaining hole extending transversely of the optic axis, and a pair of generally parallel passages in at least one of the adapter halves extending from an outside wall thereof into registry with the retaining holes in the securing posts when the posts are inserted into the securing holes;
• and
• a one-piece generally U-shaped securement clip defining a pair of generally parallel leg portions which form a pair of securement pins insertable through said pair of passages and into the retaining holes in the pair of securing posts to secure the adapter halves in assembly.