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National Stock Number:
5306-00-292-5475
Federal Supply Class:
5306
National Item Identification Number:
002925475
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:
| 11825-3-8 | 59563 | REID PRODUCTS INC. | | BM17019-3-8 | 17446 | HUCK INTERNATIONAL, INC | | ST3M453-3-8 | 007R1 | TWIST TITE MFG, INC | | ST3M453-3-8 | 06710 | VALLEY-TODECO, INC. | | GS1016-3-8 | 1EM77 | B & B SPECIALTIES INC | | BM17019-3-8 | 97928 | HUCK INTL INC | | ST3M453-3-8 | 06725 | SPS TECHNOLOGIES, LLC | | ST3M453-3-8 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | ST3M453-3-8 | 0PTK6 | SPS TECHNOLOGIES INC | | ST3M453-3-8 | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | ST3M453-3-8 | 17446 | HUCK INTERNATIONAL, INC | | ST3M453-3-8 | 27624 | SPS TECHNOLOGIES LLC | | ST3M453-3-8 | 56878 | SPS TECHNOLOGIES, LLC | | ST3M453-3-8 | 57928 | SONIC INDUSTRIES, INC. | | ST3M453-3-8 | 57964 | EG AND G SEA-LINK SYSTEMS | | ST3M453-3-8 | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | ST3M453-3-8 | 73197 | HI-SHEAR CORPORATION | | ST3M453-3-8 | 76301 | THE BOEING COMPANY | | ST3M453-3-8 | 80539 | SPS TECHNOLOGIES, LLC | | ST3M453-3-8 | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| FASTENER LENGTH | 0.815 INCHES MINIMUM AND 0.862 INCHES MAXIMUM | | GRIP LENGTH | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM | | GRIP DIAMETER | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM | | HEAD HEIGHT | 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM | | HEAD STYLE | DOUBLE HEXAGON | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | THREAD CLASS | 3A | | THREAD LENGTH | 0.305 INCHES MINIMUM AND 0.372 INCHES MAXIMUM | | THREAD DIRECTION | RIGHT-HAND | | THREAD QUANTITY PER INCH | 32 | | THREAD SERIES DESIGNATOR | UNJF | | WIDTH BETWEEN FLATS | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM |
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