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National Stock Number:
5306-01-628-5568
Federal Supply Class:
5306
National Item Identification Number:
016285568
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:
| 3M1275E6D5A | 76301 | THE BOEING COMPANY | | TX1026E6D5XA | 06725 | SPS TECHNOLOGIES, LLC | | TX1026E6D5XA | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | TX1026E6D5XA | 27624 | SPS TECHNOLOGIES LLC | | TX1026E6D5XA | 56878 | SPS TECHNOLOGIES, LLC | | TX1026E6D5XA | 73197 | HI-SHEAR CORPORATION | | TX1026E6D5XA | 80539 | SPS TECHNOLOGIES, LLC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | THREAD QUANTITY PER INCH | 24 | | THREAD CLASS | 3A | | NONSTANDARD THREAD PITCH DIAMETER | 0.3450 TO 0.3479 INCHES | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.578 INCHES NOMINAL | | FASTENER LENGTH | 0.879 INCHES MINIMUM AND | | 0.882 INCHES MAXIMUM | | MATERIAL | NICKEL ALLOY 718 OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | TORX | | HEAD DIAMETER | 0.724 INCHES MINIMUM AND | | 0.731 INCHES MAXIMUM | | HEAD HEIGHT | 0.147 INCHES NOMINAL | | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND | | 101.0 DEGREES MAXIMUM | | HOLE TYPE | DRILLED | | HOLE QUANTITY | 1 | | HOLE DIAMETER | 0.106 INCHES MINIMUM AND | | 0.116 INCHES MAXIMUM | | GRIP LENGTH | 0.3125 INCHES NOMINAL | | GRIP DIAMETER | 0.3896 INCHES MINIMUM AND | | 0.3901 INCHES MAXIMUM | | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 0.614 INCHES MINIMUM AND | | 0.621 INCHES MAXIMUM LOCKING FEATURE | | SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES MINIMUM AND | | 0.116 INCHES MAXIMUM LOCKING FEATURE | | FEATURES PROVIDED | CETYL ALCOHOL LUBRICANT | | CRITICALITY CODE JUSTIFICATION | AGAV | | PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, 100 DEGREE TENSION HEAD, GEAR DRIVE RECESS, INCONEL 718 (125 KSI SHEAR), 0.0156 INCH OVERSIZE |
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