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National Stock Number:
5306-01-338-9344
Federal Supply Class:
5306
National Item Identification Number:
013389344
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:
| SS5116-12-065 | 78286 | SIKORSKY AIRCRAFT CORPORATION | | SS5116-12-65 | 56878 | SPS TECHNOLOGIES, LLC | | SS5116-12-65 | 78286 | SIKORSKY AIRCRAFT CORPORATION | | SS5116-12-65 | 84256 | AVIBANK MFG., INC. |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.750 INCHES | | THREAD QUANTITY PER INCH | 16 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 5.763 INCHES MINIMUM AND | | 5.793 INCHES MAXIMUM | | FASTENER LENGTH | 5.172 INCHES NOMINAL | | MATERIAL | STEEL COMP XM-13 FASTENER | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE FASTENER | | SURFACE TREATMENT | PASSIVATE FASTENER | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER | | MINIMUM TENSILE STRENGTH | 205000 POUNDS PER SQUARE INCH | | HEAD STYLE | DOUBLE HEXAGON W/HOLE | | HEAD HEIGHT | 0.701 INCHES MINIMUM AND | | 0.721 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.797 INCHES MINIMUM AND | | 0.812 INCHES MAXIMUM | | EXTENDED WASHER DIAMETER | 1.220 INCHES MINIMUM AND | | 1.230 INCHES MAXIMUM | | EXTENDED WASHER THICKNESS | 0.168 INCHES MINIMUM AND | | 0.188 INCHES MAXIMUM | | GRIP LENGTH | 4.052 INCHES MINIMUM AND | | 4.072 INCHES MAXIMUM | | GRIP DIAMETER | 0.7480 INCHES MINIMUM AND | | 0.7490 INCHES MAXIMUM | | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 4.221 INCHES NOMINAL FIRST HOLE | | SHANK UNTHREADED HOLE DIAMETER | 0.141 INCHES MINIMUM AND | | 0.151 INCHES MAXIMUM FIRST HOLE | | SPECIAL FEATURES | EXTENTION ON END OF THREAD 0.546 IN. MIN, 0.566 IN. MAX LG |
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