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National Stock Number:
5306-01-097-3573
Federal Supply Class:
5306
National Item Identification Number:
010973573
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:
| 73992-3-3 | 56878 | SPS TECHNOLOGIES, LLC | | 73992-3-3 | 80539 | SPS TECHNOLOGIES, LLC | | AIC244-3-3 | 06725 | SPS TECHNOLOGIES, LLC | | BM17028-3-3 | 17446 | HUCK INTERNATIONAL, INC | | MB13-3-3 | 73197 | HI-SHEAR CORPORATION | | BM17028-3-3 | 97928 | HUCK INTL INC | | PBF1225-3-3 | 27624 | SPS TECHNOLOGIES LLC | | ST3M561-3-3 | 76301 | THE BOEING COMPANY | | VS3147-3-3 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | MB13-3-3 | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| FASTENER LENGTH | 0.408 INCHES MINIMUM AND 0.455 INCHES MAXIMUM | | GRIP LENGTH | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM | | GRIP DIAMETER | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM | | HEAD HEIGHT | 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM | | HEAD STYLE | DOUBLE HEXAGON | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | THREAD LENGTH | 0.210 INCHES MINIMUM AND 0.277 INCHES MAXIMUM | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) | | THREAD QUANTITY PER INCH | 32 | | WIDTH BETWEEN FLATS | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM |
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