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National Stock Number:
5306-01-470-1920
Federal Supply Class:
5306
National Item Identification Number:
014701920
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:
| MS21134 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE | | MS21134-16040 | 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 | 1.000 INCHES | | THREAD QUANTITY PER INCH | 12 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.396 INCHES NOMINAL | | FASTENER LENGTH | 3.896 INCHES MINIMUM AND | | 3.926 INCHES MAXIMUM | | MATERIAL | STEEL COMP 4140 OVERALL | | HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND | | 43.0 ROCKWELL C MAXIMUM OVERALL | | MINIMUM TENSILE STRENGTH | 126000 POUNDS PER SQUARE INCH | | HEAD STYLE | SPLINE EXTENDED WASHER | | HEAD HEIGHT | 0.790 INCHES MINIMUM AND | | 0.810 INCHES MAXIMUM | | EXTENDED WASHER DIAMETER | 1.846 INCHES MINIMUM AND | | 1.856 INCHES MAXIMUM | | EXTENDED WASHER THICKNESS | 0.134 INCHES MINIMUM AND | | 0.154 INCHES MAXIMUM | | HEAD MINOR DIAMETER | 1.047 INCHES MINIMUM AND | | 1.062 INCHES MAXIMUM | | GRIP LENGTH | 2.490 INCHES MINIMUM AND | | 2.510 INCHES MAXIMUM | | GRIP DIAMETER | 1.000 INCHES NOMINAL | | SURFACE FINISH | 32.0 MICROINCHES GRIP |
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