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National Stock Number:
5306-01-495-9242
Federal Supply Class:
5306
National Item Identification Number:
014959242
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:
| 3M1263-14D33 | 76301 | THE BOEING COMPANY | | 93784-14D33 | 56878 | SPS TECHNOLOGIES, LLC | | PBF1626-14D33 | 27624 | SPS TECHNOLOGIES LLC |
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Techincal Specification:
| CRITICALITY CODE JUSTIFICATION | AGAV | | EXTENDED WASHER DIAMETER | 1.615 INCHES MINIMUM AND 1.625 INCHES MAXIMUM | | EXTENDED WASHER THICKNESS | 0.125 INCHES NOMINAL | | FASTENER LENGTH | 3.234 INCHES MINIMUM AND 3.264 INCHES MAXIMUM | | GRIP DIAMETER | 0.873 INCHES MINIMUM AND 0.874 INCHES MAXIMUM | | GRIP LENGTH | 2.063 INCHES NOMINAL | | HEAD HEIGHT | 0.700 INCHES NOMINAL | | HEAD STYLE | DOUBLE HEXAGON W/HOLE | | MATERIAL | COBALT COMP MP-35-N OVERALL | | NOMINAL THREAD DIAMETER | 0.875 INCHES | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.186 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 14 | | THREAD SERIES DESIGNATOR | UNJF | | WIDTH BETWEEN FLATS | 0.923 INCHES MINIMUM AND 0.953 INCHES MAXIMUM |
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