C.F.R. » Title 49 » CHAPTER II—FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION › PART 236—RULES, STANDARDS, AND INSTRUCTIONS GOVERNING THE INSTALLATION, INSPECTION, MAINTENANCE, AND REPAIR OF SIGNAL AND TRAIN CONTROL SYSTEMS, DEVICES, AND APPLIANCES › Subpart G—Definitions

49 C.F.R. § 236.710

Block, latch

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The lower extremity of a latch rod which engages with a square shoulder of the segment or quadrant to hold the lever in position.