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National Stock Number: 5306-01-228-9500
Federal Supply Class: 5306
National Item Identification Number: 012289500
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:
SS5115-5-13 | 56878 | SPS TECHNOLOGIES, LLC | SS5115-5-13 | 78286 | SIKORSKY AIRCRAFT CORPORATION | SS5115-5-13 | 80539 | SPS TECHNOLOGIES, LLC |
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Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.007 INCHES MINIMUM AND 1.064 INCHES MAXIMUM ALL HOLES | FASTENER LENGTH | 1.281 INCHES MINIMUM AND 1.301 INCHES MAXIMUM | GRIP DIAMETER | 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM | GRIP LENGTH | 0.812 INCHES MINIMUM AND 0.828 INCHES MAXIMUM | HEAD HEIGHT | 0.157 INCHES MINIMUM AND 0.172 INCHES MAXIMUM | HEAD STYLE | DISHED HEXAGON | LOCKING FEATURE | DETENT BALL GRIP | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | MATERIAL | STEEL COMP XM-13 OVERALL | PROPRIETARY CHARACTERISTICS | PACS | NOMINAL THREAD DIAMETER | 0.312 INCHES | SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM ALL HOLES | SPECIAL FEATURES | TWO HOLES SPACED NINETY DEGREES APART | WIDTH BETWEEN FLATS | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM | SURFACE FINISH | 63.0 MICROINCHES BEARING SURFACE OF HEAD | SURFACE FINISH | 63.0 MICROINCHES GRIP | SURFACE FINISH | 32.0 MICROINCHES THREADS | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | SURFACE TREATMENT | PASSIVATE OVERALL | THREAD CLASS | 3A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 0.302 INCHES MINIMUM AND 0.369 INCHES MAXIMUM | THREAD QUANTITY PER INCH | 24 | THREAD SERIES DESIGNATOR | UNJF |
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