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National Stock Number:
5306-00-059-1203
Federal Supply Class:
5306
National Item Identification Number:
000591203
Description:
BOLT,CLOSE TOLERANCE
Detail:
An externally threaded fastener whose unthreaded portion is of a specified 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. 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. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see BOLT, SHEAR. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see BOLT, MACHINE.
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Manufacturer Information:
| 3M33-3-33 | 06710 | VALLEY-TODECO, INC. | | 3M33-3-33 | 06725 | SPS TECHNOLOGIES, LLC | | 3M33-3-33 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | 3M33-3-33 | 27624 | SPS TECHNOLOGIES LLC | | 3M33-3-33 | 34087 | KITCO LLC | | 3M33-3-33 | 56540 | ASSOCIATED AIRCRAFT MANUFACTURING & SALES, INC. | | 3M33-3-33 | 76301 | THE BOEING COMPANY | | 3M33-3-33 | 80539 | SPS TECHNOLOGIES, LLC | | 3M33-3-33 | 8X044 | DERCO AEROSPACE, INC. | | 3M33-3-33 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.328 INCHES NOMINAL ALL HOLES | | FASTENER LENGTH | 2.469 INCHES NOMINAL | | GRIP DIAMETER | 0.1889 INCHES MINIMUM | | GRIP LENGTH | 2.062 INCHES NOMINAL | | HEAD HEIGHT | 0.125 INCHES NOMINAL | | HEAD STYLE | HEXAGON | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT | | SHANK UNTHREADED HOLE DIAMETER | 0.070 INCHES NOMINAL ALL HOLES | | WIDTH BETWEEN FLATS | 0.375 INCHES NOMINAL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.407 INCHES MINIMUM | | THREAD QUANTITY PER INCH | 32 | | THREAD SERIES DESIGNATOR | UNF |
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