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National Stock Number:
5306-01-308-4811
Federal Supply Class:
5306
National Item Identification Number:
013084811
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:
| BACB30LU5-10 | 06710 | VALLEY-TODECO, INC. | | BACB30LU5-10 | 06725 | SPS TECHNOLOGIES, LLC | | BACB30LU5-10 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | BACB30LU5-10 | 17446 | HUCK INTERNATIONAL, INC | | BACB30LU5-10 | 17943 | FEDERAL MANUFACTURING CORP | | BACB30LU5-10 | 1RC86 | HOWMET GLOBAL FASTENING SYSTEMS INC | | BACB30LU5-10 | 27624 | SPS TECHNOLOGIES LLC | | BACB30LU5-10 | 56878 | SPS TECHNOLOGIES, LLC | | BACB30LU5-10 | 80539 | SPS TECHNOLOGIES, LLC | | BACB30LU5-10 | 81205 | THE BOEING COMPANY | | BACB30LU5-10 | 97928 | HUCK INTL INC | | BACB30LU5-10 | 9N513 | VOI-SHAN/CHATSWORTH DIV OF VSI CORP SUB OF FAIRCHILD INDUSTRIES INC |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | FASTENER LENGTH | 1.094 INCHES NOMINAL | | GRIP LENGTH | 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM | | GRIP DIAMETER | 0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM | | HEAD DIAMETER | 0.574 INCHES MINIMUM AND 0.637 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000/4340 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-S-6049/8740 MIL SPEC SINGLE MATERIAL RESPONSE OR AMS6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 0.3125 INCHES | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE II,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.469 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 24 | | THREAD SERIES DESIGNATOR | UNJF |
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