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National Stock Number:
5306-01-211-4352
Federal Supply Class:
5306
National Item Identification Number:
012114352
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:
| BACB30LT6D19 | 06725 | SPS TECHNOLOGIES, LLC | | BACB30LT6D19 | 17943 | FEDERAL MANUFACTURING CORP | | BACB30LT6D19 | 27624 | SPS TECHNOLOGIES LLC | | BACB30LT6D19 | 80539 | SPS TECHNOLOGIES, LLC | | BACB30LT6D19 | 81205 | THE BOEING COMPANY | | BACB30LT6D19 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | BACB30LT6D19 | 93907 | TEXTRON FASTENING SYSTEMS DBA DECORAH OPERATIONS TFS | | BACB30LT6D19 | 97928 | HUCK INTL INC | | BACB390LT6D19 | 06710 | VALLEY-TODECO, INC. | | BACB39LT6D19 | 97928 | HUCK INTL INC | | BACV30LT6D19 | 06710 | VALLEY-TODECO, INC. | | BACV30LT6D19 | 06952 | INSULATION SUPPLY CO. | | BACV30LT6D19 | 17446 | HUCK INTERNATIONAL, INC | | BACV30LT6D19 | 1RC86 | HOWMET GLOBAL FASTENING SYSTEMS INC | | BACV30LT6D19 | 56878 | SPS TECHNOLOGIES, LLC |
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Techincal Specification:
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.466 INCHES MINIMUM AND 1.528 INCHES MAXIMUM FIRST HOLE | | FASTENER LENGTH | 1.643 INCHES MINIMUM AND 1.673 INCHES MAXIMUM | | GRIP DIAMETER | 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM | | GRIP LENGTH | 1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM | | HEAD HEIGHT | 0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM | | HEAD STYLE | DOUBLE HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | IRON ALLOY 660 OVERALL | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES MINIMUM AND 0.116 INCHES MAXIMUM FIRST HOLE | | SPECIAL FEATURES | GREEN DYE OR PAINT ON THE THREAD END | | WIDTH BETWEEN FLATS | 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM | | SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD | | SURFACE FINISH | 32.0 MICROINCHES THREADS | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.445 INCHES MINIMUM AND 0.495 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 24 |
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