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National Stock Number:
5306-01-124-7693
Federal Supply Class:
5306
National Item Identification Number:
011247693
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:
| NAS1120-28D | 04348 | LAWRENCE ENGINEERING AND SUPPLY INC | | NAS1120-28D | 07851 | NOR-CAL SUPPLY CO | | NAS1120-28D | 08938 | AIR INDUSTRIES CO INC | | NAS1120-28D | 28977 | ACCURATE PRECISION FASTENER CORP. | | NAS1120-28D | 30889 | ERIKS SOUTHWEST INC DBA MONTCLAIR ENTERPRISES | | NAS1120-28D | 30902 | F AND C SALES INC | | NAS1120-28D | 50568 | APCOM INC | | NAS1120-28D | 56878 | SPS TECHNOLOGIES, LLC | | NAS1120-28D | 71563 | COLLINS ENGINEERING CORP | | NAS1120-28D | 73197 | HI-SHEAR CORPORATION | | NAS1120-28D | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE | | NAS1120-28D | 82172 | DURHAM AIRCRAFT SERVICE INC | | NAS1120-28D | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 1.250 INCHES | | THREAD QUANTITY PER INCH | 12 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.933 INCHES MINIMUM AND | | 0.983 INCHES MAXIMUM | | FASTENER LENGTH | 2.693 INCHES MINIMUM AND | | 2.723 INCHES MAXIMUM | | MATERIAL | STEEL COMP E4340 OR | | STEEL COMP 4140 OR | | STEEL COMP 8740 OR | | STEEL COMP 8735 OR | | STEEL COMP 6150 OVERALL | | SURFACE TREATMENT | CADMIUM AND | | CHROMATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND | | 40.0 ROCKWELL C MAXIMUM OVERALL | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | HEAD STYLE | DISHED HEXAGON | | HEAD HEIGHT | 0.610 INCHES MINIMUM AND | | 0.640 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 1.801 INCHES MINIMUM AND | | 1.815 INCHES MAXIMUM | | GRIP LENGTH | 1.740 INCHES MINIMUM AND | | 1.760 INCHES MAXIMUM | | GRIP DIAMETER | 1.2475 INCHES MINIMUM AND | | 1.2490 INCHES MAXIMUM | | SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD | | 32.0 MICROINCHES GRIP | | 32.0 MICROINCHES THREADS | | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.513 INCHES MINIMUM AND | | 2.563 INCHES MAXIMUM FIRST HOLE | | SHANK UNTHREADED HOLE DIAMETER | 0.131 INCHES MINIMUM AND | | 0.151 INCHES MAXIMUM FIRST HOLE | | SPECIFICATION/STANDARD DATA | 80205-NAS1120 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
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