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National Stock Number:
5306-01-278-1994
Federal Supply Class:
5306
National Item Identification Number:
012781994
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:
| 120978S16-D33 | 80539 | SPS TECHNOLOGIES, LLC | | AIC596S16D33 | 06725 | SPS TECHNOLOGIES, LLC | | H411S16D-33 | 17446 | HUCK INTERNATIONAL, INC | | PBF7521S16D33 | 27624 | SPS TECHNOLOGIES LLC | | C7521S16D33 | 81755 | LOCKHEED MARTIN CORPORATION | | H411S16D-33 | 97928 | HUCK INTL INC | | VCG0009S16D-33 | 06710 | VALLEY-TODECO, INC. | | VS3133S16D33 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | SF118S16D33 | 0K6Z0 | SATURN FASTENERS INC | | VS3133S16D33 | 70236 | TACTAIR FLUID CONTROLS INC | | VS3133S16D33 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 1.000 INCHES | | THREAD QUANTITY PER INCH | 12 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.825 INCHES MINIMUM AND | | 0.875 INCHES MAXIMUM | | FASTENER LENGTH | 2.897 INCHES MINIMUM AND | | 2.927 INCHES MAXIMUM | | MATERIAL | STEEL COMP H11 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | S672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | MINIMUM TENSILE STRENGTH | 132000 POUNDS PER SQUARE INCH | | HEAD STYLE | SPLINE DRIVE SHEAR HEAD | | HEAD HEIGHT | 0.539 INCHES NOMINAL | | HEAD MINOR DIAMETER | 1.715 INCHES NOMINAL | | GRIP LENGTH | 2.052 INCHES MINIMUM AND | | 2.072 INCHES MAXIMUM | | GRIP DIAMETER | 0.9980 INCHES MINIMUM AND | | 0.9990 INCHES MAXIMUM | | SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD | | 32.0 MICROINCHES GRIP | | 32.0 MICROINCHES THREADS | | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.647 INCHES MINIMUM AND | | 2.677 INCHES MAXIMUM FIRST HOLE | | SHANK UNTHREADED HOLE DIAMETER | 0.141 INCHES NOMINAL FIRST HOLE |
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