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National Stock Number: 5306-01-057-7210
Federal Supply Class: 5306
National Item Identification Number: 010577210
Description: BOLT,SHEAR
Detail: A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. The unthreaded portion is of specific grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the Screw Thread Standards, FED STD H28 and/or other nationally recognized standards. A locking feature may be incorporated in the design of the head or threads. See BOLT, MACHINE and BOLT, CLEVIS.
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Manufacturer Information:
69-16277-1 | 81205 | THE BOEING COMPANY |
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Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 5.065 INCHES MINIMUM AND 5.095 INCHES MAXIMUM FIRST HOLE | FASTENER LENGTH | 5.188 INCHES MINIMUM AND 5.218 INCHES MAXIMUM | GRIP DIAMETER | 0.4985 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM | GRIP LENGTH | 4.750 INCHES NOMINAL | HARDNESS RATING | 33.0 ROCKWELL C NOMINAL OVERALL | HEAD HEIGHT | 0.250 INCHES MINIMUM AND 0.265 INCHES MAXIMUM | HEAD STYLE | HEXAGON | MATERIAL | STEEL COMP E4340 OVERALL | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | NOMINAL THREAD DIAMETER | 0.500 INCHES | SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES MINIMUM AND 0.116 INCHES MAXIMUM FIRST HOLE | WIDTH BETWEEN FLATS | 0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM | SURFACE TREATMENT | CADMIUM HEAD | SURFACE TREATMENT | CADMIUM THREADS | SURFACE TREATMENT | CHROMIUM GRIP | THREAD CLASS | 3A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 0.438 INCHES MINIMUM AND 0.468 INCHES MAXIMUM | THREAD QUANTITY PER INCH | 20 | THREAD SERIES DESIGNATOR | UNF |
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