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National Stock Number:
5306-01-281-1808
Federal Supply Class:
5306
National Item Identification Number:
012811808
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:
| LD111-0047-2407 | 06710 | VALLEY-TODECO, INC. | | LD111-0047-2407 | 06725 | SPS TECHNOLOGIES, LLC | | LD111-0047-2407 | 1UX99 | MOLEX, LLC | | LD111-0047-2407 | 23899 | J.W. MANUFACTURING, INC | | LD111-0047-2407 | 27264 | MOLEX INCORPORATED DBA USE CAGE CODE 1UX99 FOR CATALOGING DIV MOLEX CONNECTOR CORPORATION | | LD111-0047-2407 | 27624 | SPS TECHNOLOGIES LLC | | LD111-0047-2407 | 43999 | THE BOEING COMPANY | | LD111-0047-2407 | 56878 | SPS TECHNOLOGIES, LLC | | LD111-0047-2407 | 57928 | SONIC INDUSTRIES, INC. | | LD111-0047-2407 | 73197 | HI-SHEAR CORPORATION | | LD111-0047-2407 | 80539 | SPS TECHNOLOGIES, LLC | | LD111-0047-2407 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | LD111-0047-2407 | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| COUNTERSINK ANGLE | 90.0 DEGREES MINIMUM AND 94.0 DEGREES MAXIMUM | | FASTENER LENGTH | 0.820 INCHES MINIMUM AND 0.850 INCHES MAXIMUM | | GRIP LENGTH | 0.438 INCHES NOMINAL | | GRIP DIAMETER | 0.3898 INCHES MINIMUM AND 0.3948 INCHES MAXIMUM | | HEAD DIAMETER | 0.390 INCHES MINIMUM AND 0.395 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP XM-13 OVERALL | | MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | 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 | 0.382 INCHES MINIMUM AND 0.412 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 28 |
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