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National Stock Number:
5306-01-044-6564
Federal Supply Class:
5306
National Item Identification Number:
010446564
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:
| 110185-3-2M | 56878 | SPS TECHNOLOGIES, LLC | | 110185-3-2M | 80539 | SPS TECHNOLOGIES, LLC | | VEH160271-3M-2 | 06710 | VALLEY-TODECO, INC. | | BM15016-3-2A | 17446 | HUCK INTERNATIONAL, INC | | GB511BY3M2 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | BM15016-3-2A | 97928 | HUCK INTL INC | | VS3117-3-2 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| FASTENER LENGTH | 0.448 INCHES MINIMUM AND 0.478 INCHES MAXIMUM | | GRIP DIAMETER | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM | | GRIP LENGTH | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM | | HEAD HEIGHT | 0.110 INCHES MINIMUM AND 0.125 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | MATERIAL | TITANIUM ALLOY UNS R54520 OVERALL | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | SPECIAL FEATURES | DRY FILM LUBRICANT | | SPECIFICATION/STANDARD DATA | 26512-GB511BY PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD | | WIDTH BETWEEN FLATS | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM | | SURFACE FINISH | 63.0 MICROINCHES BEARING SURFACE OF HEAD | | SURFACE FINISH | 63.0 MICROINCHES GRIP | | SURFACE FINISH | 63.0 MICROINCHES THREADS | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.313 INCHES MINIMUM AND 0.363 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 32 |
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