(57) [summary] The present invention is to provide a male fitting of fire fighting fittings that can be engaged with the female bracket of large and small different caliber. A proximal end 1a is an outer cylinder body 1 having an outer annular protrusion 12 for large bracket E locking to the outer circumferential surface 8 of the tip 1b together is attached to the spout A, sliding into the outer cylinder 1 rotatably on the first sliding tube 3 for releasing large fittings E engagement that fitted to a tubular body 2 within which is inserted slidably into the outer cylinder 1, the inner cylinder 2 the tip 2b It includes an annular member 5 for the small-diameter female bracket locking provided on the outer peripheral surface 7 of the,. In addition, a second sliding tube 4 of the inner cylinder 2 to slidably fitted have been small-diameter female bracket locking release along with the provision, the second sliding tube 4 a resilient biasing to the outer cylinder 1 side The elastic member 6 is provided.
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