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National Stock Number:
5306-01-036-9127
Federal Supply Class:
5306
National Item Identification Number:
010369127
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:
| 69-59903-7 | 81205 | THE BOEING COMPANY | | 69-78670-3 | 81205 | THE BOEING COMPANY |
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Techincal Specification:
| FASTENER LENGTH | 2.790 INCHES NOMINAL | | GRIP DIAMETER | 1.3725 INCHES MINIMUM AND 1.3740 INCHES MAXIMUM | | GRIP LENGTH | 1.342 INCHES NOMINAL | | HEAD HEIGHT | 0.640 INCHES NOMINAL | | HEAD STYLE | CROWNED HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | A-6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP H11 OVERALL | | MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 1.375 INCHES | | WIDTH BETWEEN FLATS | 1.977 INCHES MINIMUM AND 1.990 INCHES MAXIMUM | | SURFACE FINISH | 32.0 MICROINCHES GRIP | | SURFACE TREATMENT | CADMIUM BEARING SURFACE OF HEAD | | SURFACE TREATMENT | CADMIUM GRIP | | SURFACE TREATMENT | CHROMATE TOP OF HEAD | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.280 INCHES MINIMUM AND 1.448 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 12 | | THREAD SERIES DESIGNATOR | UNJF |
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