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National Stock Number:
5306-01-413-5517
Federal Supply Class:
5306
National Item Identification Number:
014135517
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:
| BACB30LE7K27X | 06710 | VALLEY-TODECO, INC. | | BACB30LE7K27X | 06725 | SPS TECHNOLOGIES, LLC | | BACB30LE7K27X | 16258 | SPACE-LOK, INC. | | BACB30LE7K27X | 17943 | FEDERAL MANUFACTURING CORP | | BACB30LE7K27X | 1RC86 | HOWMET GLOBAL FASTENING SYSTEMS INC | | BACB30LE7K27X | 27624 | SPS TECHNOLOGIES LLC | | BACB30LE7K27X | 56878 | SPS TECHNOLOGIES, LLC | | BACB30LE7K27X | 57928 | SONIC INDUSTRIES, INC. | | BACB30LE7K27X | 80539 | SPS TECHNOLOGIES, LLC | | BACB30LE7K27X | 81205 | THE BOEING COMPANY | | BACB30LE7K27X | 97928 | HUCK INTL INC | | BACB30LE7K27X | 9N513 | VOI-SHAN/CHATSWORTH DIV OF VSI CORP SUB OF FAIRCHILD INDUSTRIES INC | | BACB30LE7K27X | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.4375 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.733 INCHES NOMINAL | | FASTENER LENGTH | 2.405 INCHES MINIMUM AND | | 2.435 INCHES MAXIMUM | | MATERIAL | IRON ALLOY 660 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | ALUMINUM OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | BMS10-85 TY 1 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | HEAD STYLE | DOUBLE HEXAGON EXTENDED WASHER | | HEAD HEIGHT | 0.365 INCHES MINIMUM AND | | 0.385 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.561 INCHES MINIMUM AND | | 0.580 INCHES MAXIMUM | | EXTENDED WASHER DIAMETER | 0.740 INCHES MINIMUM AND | | 0.750 INCHES MAXIMUM | | EXTENDED WASHER THICKNESS | 0.089 INCHES MINIMUM AND | | 0.109 INCHES MAXIMUM | | GRIP LENGTH | 1.6775 INCHES MINIMUM AND | | 1.6975 INCHES MAXIMUM | | GRIP DIAMETER | 0.4512 INCHES MINIMUM | | SPECIAL FEATURES | OVERSIZE |
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