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National Stock Number:
5306-01-060-6844
Federal Supply Class:
5306
National Item Identification Number:
010606844
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:
| 120978-6D27N | 56878 | SPS TECHNOLOGIES, LLC | | 120978-6D27N | 80539 | SPS TECHNOLOGIES, LLC | | AIC596-6DN27 | 06725 | SPS TECHNOLOGIES, LLC | | C7521-6DN27 | 06710 | VALLEY-TODECO, INC. | | C7521-6DN27 | 80539 | SPS TECHNOLOGIES, LLC | | C7521-6DN27 | 81755 | LOCKHEED MARTIN CORPORATION | | H411-6DN27 | 17446 | HUCK INTERNATIONAL, INC | | PBF7521-6DN27 | 27624 | SPS TECHNOLOGIES LLC | | VCG0009-6DN27 | 06710 | VALLEY-TODECO, INC. | | VS3133-6DN27 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | VS3133-6DN27 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.920 INCHES MINIMUM AND 1.940 INCHES MAXIMUM FIRST HOLE | | FASTENER LENGTH | 2.132 INCHES MINIMUM AND 2.152 INCHES MAXIMUM | | GRIP DIAMETER | 0.3733 INCHES MINIMUM AND 0.3742 INCHES MAXIMUM | | GRIP LENGTH | 1.678 INCHES MINIMUM AND 1.698 INCHES MAXIMUM | | HEAD HEIGHT | 0.210 INCHES NOMINAL | | HEAD MINOR DIAMETER | 0.679 INCHES MAXIMUM | | HEAD STYLE | SPLINE DRIVE SHEAR HEAD | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES NOMINAL FIRST HOLE | | SPECIAL FEATURES | DRY FILM LUBE PER MIL-H-8937B ON BEARING SURFACE OF HEAD AND GRIP | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS672 NATIONAL SPEC SINGLE TREATMENT RESPONSE THREADS | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS672 NATIONAL SPEC SINGLE TREATMENT RESPONSE TOP OF HEAD | | SURFACE TREATMENT | CADMIUM THREADS | | SURFACE TREATMENT | CADMIUM TOP OF HEAD | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.454 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 24 |
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