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National Stock Number:
5306-01-413-5447
Federal Supply Class:
5306
National Item Identification Number:
014135447
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:
| BACB30LE7K28X | 06710 | VALLEY-TODECO, INC. | | BACB30LE7K28X | 06725 | SPS TECHNOLOGIES, LLC | | BACB30LE7K28X | 17943 | FEDERAL MANUFACTURING CORP | | BACB30LE7K28X | 27624 | SPS TECHNOLOGIES LLC | | BACB30LE7K28X | 57928 | SONIC INDUSTRIES, INC. | | BACB30LE7K28X | 80539 | SPS TECHNOLOGIES, LLC | | BACB30LE7K28X | 81205 | THE BOEING COMPANY | | BACB30LE7K28X | 97928 | HUCK INTL INC | | BACB30LE7K28X | 9N513 | VOI-SHAN/CHATSWORTH DIV OF VSI CORP SUB OF FAIRCHILD INDUSTRIES INC |
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Techincal Specification:
| EXTENDED WASHER DIAMETER | 0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM | | EXTENDED WASHER THICKNESS | 0.089 INCHES MINIMUM AND 0.109 INCHES MAXIMUM | | FASTENER LENGTH | 2.468 INCHES MINIMUM AND 2.498 INCHES MAXIMUM | | GRIP DIAMETER | 0.4512 INCHES MINIMUM | | GRIP LENGTH | 1.740 INCHES MINIMUM AND 1.760 INCHES MAXIMUM | | HEAD HEIGHT | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM | | HEAD STYLE | DOUBLE HEXAGON EXTENDED WASHER | | MINIMUM TENSILE STRENGTH | 200000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.4375 INCHES | | SPECIAL FEATURES | OVERSIZE | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.733 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) | | THREAD QUANTITY PER INCH | 20 | | WIDTH BETWEEN FLATS | 0.561 INCHES MINIMUM AND 0.580 INCHES MAXIMUM |
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