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National Stock Number:
5306-01-188-6840
Federal Supply Class:
5306
National Item Identification Number:
011886840
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:
| 74328-6D24 | 56878 | SPS TECHNOLOGIES, LLC | | 74328-6D24 | 80539 | SPS TECHNOLOGIES, LLC | | AIC752-6D24 | 06725 | SPS TECHNOLOGIES, LLC | | BM3326-6D24 | 17446 | HUCK INTERNATIONAL, INC | | GS1030-6D24 | 1EM77 | B & B SPECIALTIES INC | | BM3326-6D24 | 97928 | HUCK INTL INC | | ST3M571-6D24 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | S371-6D24 | 17446 | HUCK INTERNATIONAL, INC | | RA22018-6D24 | 17446 | HUCK INTERNATIONAL, INC | | S11-1059-6D24 | 57928 | SONIC INDUSTRIES, INC. | | MB84-6D24 | 73197 | HI-SHEAR CORPORATION | | RA22018-6D24 | 97928 | HUCK INTL INC | | S371-6D24 | 97928 | HUCK INTL INC | | MB84-6D24 | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC | | VAL23033-6D24 | 06710 | VALLEY-TODECO, INC. | | VS3060-6D24 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | ST3M571-6D24 | 0PTK6 | SPS TECHNOLOGIES INC | | ST3M571-6D24 | 27624 | SPS TECHNOLOGIES LLC | | ST3M571-6D24 | 56878 | SPS TECHNOLOGIES, LLC | | ST3M571-6D24 | 76301 | THE BOEING COMPANY | | VS3060-6D24 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.876 INCHES MINIMUM AND 1.916 INCHES MAXIMUM FIRST HOLE | | EXTENDED WASHER DIAMETER | 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM | | EXTENDED WASHER THICKNESS | 0.081 INCHES MINIMUM AND 0.101 INCHES MAXIMUM | | FASTENER LENGTH | 2.099 INCHES MINIMUM AND 2.129 INCHES MAXIMUM | | GRIP DIAMETER | 0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM | | GRIP LENGTH | 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM | | HEAD HEIGHT | 0.378 INCHES MINIMUM AND 0.398 INCHES MAXIMUM | | HEAD STYLE | DOUBLE HEXAGON W/HOLE | | MATERIAL | STEEL COMP XM-13 OVERALL | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE | | 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 | 0.589 INCHES MINIMUM AND 0.639 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 24 | | THREAD SERIES DESIGNATOR | UNJF | | WIDTH BETWEEN FLATS | 0.429 INCHES MINIMUM AND 0.449 INCHES MAXIMUM |
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