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National Stock Number:
5306-00-059-1209
Federal Supply Class:
5306
National Item Identification Number:
000591209
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:
| 3M33-5-39A | 06710 | VALLEY-TODECO, INC. | | 3M33-5-39A | 06725 | SPS TECHNOLOGIES, LLC | | 3M33-5-39A | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | 3M33-5-39A | 0PTK6 | SPS TECHNOLOGIES INC | | 3M33-5-39A | 17446 | HUCK INTERNATIONAL, INC | | 3M33-5-39A | 1L3U4 | DEFENSE SUPPORT SERVICES, INC. | | 3M33-5-39A | 1Q009 | MADISON AEROSPACE, INC. | | 3M33-5-39A | 27624 | SPS TECHNOLOGIES LLC | | 3M33-5-39A | 56878 | SPS TECHNOLOGIES, LLC | | 3M33-5-39A | 76301 | THE BOEING COMPANY | | 3M33-5-39A | 80539 | SPS TECHNOLOGIES, LLC | | 3M33-5-39A | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| FASTENER LENGTH | 2.969 INCHES NOMINAL | | GRIP DIAMETER | 0.3112 INCHES MINIMUM AND 0.3117 INCHES MAXIMUM | | GRIP LENGTH | 2.438 INCHES NOMINAL | | HEAD HEIGHT | 0.188 INCHES NOMINAL | | HEAD STYLE | HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | IRON ALLOY 660 OVERALL | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | WIDTH BETWEEN FLATS | 0.500 INCHES NOMINAL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.531 INCHES MINIMUM | | THREAD QUANTITY PER INCH | 24 | | THREAD SERIES DESIGNATOR | UNF |
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