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National Stock Number:
5306-00-245-3747
Federal Supply Class:
5306
National Item Identification Number:
002453747
Description:
BOLT,SHEAR
Detail:
A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. 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. The unthreaded portion is of specific 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. A locking feature may be incorporated in the design of the head or threads. See BOLT, MACHINE and BOLT, CLEVIS.
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Manufacturer Information:
| EWSB22-4A7 | 50392 | SPS TECHNOLOGIES INC | | EWSB22-4A7 | 56878 | SPS TECHNOLOGIES, LLC | | GB511B4-7 | 06710 | VALLEY-TODECO, INC. | | GB511B4-7 | 06725 | SPS TECHNOLOGIES, LLC | | GB511B4-7 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | GB511B4-7 | 27624 | SPS TECHNOLOGIES LLC | | GB511B4-7 | 73197 | HI-SHEAR CORPORATION | | GB511B4-7 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | GB511B4-7 | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.267 INCHES MINIMUM AND | | 0.334 INCHES MAXIMUM | | FASTENER LENGTH | 0.714 INCHES MINIMUM AND | | 0.761 INCHES MAXIMUM | | MATERIAL | STEEL COMP H11 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6485 ASSN STD SINGLE MATERIAL RESPONSE OR | | AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | HARDNESS RATING | 46.0 ROCKWELL C MINIMUM AND | | 50.0 ROCKWELL C MAXIMUM OVERALL | | MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH | | HEAD STYLE | DOUBLE HEXAGON | | HEAD HEIGHT | 0.154 INCHES MINIMUM AND | | 0.174 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.430 INCHES MINIMUM AND | | 0.439 INCHES MAXIMUM | | GRIP LENGTH | 0.427 INCHES MINIMUM AND | | 0.447 INCHES MAXIMUM | | GRIP DIAMETER | 0.2483 INCHES MINIMUM AND | | 0.2492 INCHES MAXIMUM | | SPECIFICATION/STANDARD DATA | 26572-GB511B4 MANUFACTURERS STANDARD | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 56878 | | DESIGN CONTROL REFERENCE | EWSB22-4A7 |
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