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National Stock Number:
5306-01-197-5314
Federal Supply Class:
5306
National Item Identification Number:
011975314
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:
| 68485-12P54 | 56878 | SPS TECHNOLOGIES, LLC | | 68485-12P54 | 80539 | SPS TECHNOLOGIES, LLC |
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Techincal Specification:
| FASTENER LENGTH | 4.418 INCHES MINIMUM AND 4.465 INCHES MAXIMUM | | GRIP DIAMETER | 0.7480 INCHES MINIMUM AND 0.7490 INCHES MAXIMUM | | GRIP LENGTH | 3.365 INCHES MINIMUM AND 3.385 INCHES MAXIMUM | | HEAD HEIGHT | 0.384 INCHES MINIMUM AND 0.431 INCHES MAXIMUM | | HEAD STYLE | DOUBLE HEXAGON | | NOMINAL THREAD DIAMETER | 0.750 INCHES | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6487 ASSN STD 1ST MATERIAL RESPONSE OVERALL OR STSBS001 ASSN STD 2ND MATERIAL RESPONSE OVERALL OR SPS B-640 ASSN STD 3RD MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | MINIMUM TENSILE STRENGTH | 156000 POUNDS PER SQUARE INCH | | THREAD QUANTITY PER INCH | 16 | | THREAD SERIES DESIGNATOR | UNJF | | WIDTH BETWEEN FLATS | 1.200 INCHES MINIMUM | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 1.059 INCHES NOMINAL |
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