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National Stock Number:
5306-00-357-1903
Federal Supply Class:
5306
National Item Identification Number:
003571903
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:
| 109453-8D45 | 50392 | SPS TECHNOLOGIES INC | | 109453-8D45 | 56878 | SPS TECHNOLOGIES, LLC | | AIC753-8D45 | 06725 | SPS TECHNOLOGIES, LLC | | BM17019-8D45 | 17446 | HUCK INTERNATIONAL, INC | | 11825-8D45 | 59563 | REID PRODUCTS INC. | | BM17019-8D45 | 97928 | HUCK INTL INC | | HP5453-8D45 | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | SLB252-8D45 | 16258 | SPACE-LOK, INC. | | GS1016-8D45 | 1EM77 | B & B SPECIALTIES INC | | PBF1253-8D45 | 27624 | SPS TECHNOLOGIES LLC | | S11-1060-8D45 | 57928 | SONIC INDUSTRIES, INC. | | FIT7047-8D45 | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | MB61-8D45 | 73197 | HI-SHEAR CORPORATION | | MB61-8D45 | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC | | VAL23029-8D45 | 06710 | VALLEY-TODECO, INC. | | VS3204-8D45 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | ST3M453-8D45 | 1VSL7 | HOUSTON PRECISION FASTENERS I LP | | WC453-8D45 | 60516 | WEST COAST AEROSPACE, INC. | | ST3M453-8D45 | 76301 | THE BOEING COMPANY | | US3204-8D45 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 3.317 INCHES MINIMUM AND 3.374 INCHES MAXIMUM FIRST HOLE | | FASTENER LENGTH | 3.445 INCHES MINIMUM AND 3.492 INCHES MAXIMUM | | GRIP DIAMETER | 0.4990 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM | | GRIP LENGTH | 2.802 INCHES MINIMUM AND 2.822 INCHES MAXIMUM | | HEAD HEIGHT | 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM | | HEAD STYLE | DOUBLE HEXAGON | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE | | SPECIFICATION/STANDARD DATA | 08524-B-17019 MANUFACTURERS STANDARD | | WIDTH BETWEEN FLATS | 0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.623 INCHES MINIMUM AND 0.690 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNF | | THREAD QUANTITY PER INCH | 20 |
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