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National Stock Number:
5306-01-445-6724
Federal Supply Class:
5306
National Item Identification Number:
014456724
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:
| MS21250-12074 | 4GP55 | ACUFAST AIRCRAFT PRODUCTS | | MS21250-12074 | 6W912 | MEG TECHNOLOGIES, INC. | | MS21250-12074 | 74703 | LOCKHEED MARTIN AERONAUTICAL SYSTEMS SUPPORT COMPANY | | MS21250-12074 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE | | MS21250-12074 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | MS21250-12074 | 98897 | LOCKHEED MARTIN CORP | | NASM21250-12074 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.750 INCHES | | THREAD QUANTITY PER INCH | 16 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.036 INCHES MINIMUM | | FASTENER LENGTH | 5.681 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | MINIMUM TENSILE STRENGTH | 1800000 POUNDS PER SQUARE INCH | | HEAD STYLE | DOUBLE HEXAGON W/HOLE | | HEAD HEIGHT | 0.711 INCHES NOMINAL | | WIDTH BETWEEN FLATS | 0.797 INCHES MINIMUM AND | | 0.812 INCHES MAXIMUM | | EXTENDED WASHER DIAMETER | 1.220 INCHES MINIMUM AND | | 1.230 INCHES MAXIMUM | | EXTENDED WASHER THICKNESS | 0.178 INCHES NOMINAL | | GRIP LENGTH | 4.625 INCHES NOMINAL | | GRIP DIAMETER | 0.7480 INCHES MINIMUM AND | | 0.7490 INCHES MAXIMUM |
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