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National Stock Number:
5306-01-226-1947
Federal Supply Class:
5306
National Item Identification Number:
012261947
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:
| A02R3712-1 | 56878 | SPS TECHNOLOGIES, LLC | | A02R3712-1 | 77272 | THE BOEING COMPANY | | A02R3712-1 | 80539 | SPS TECHNOLOGIES, LLC | | A02R3712-1 | 81205 | THE BOEING COMPANY | | A02R3712-1 | 84256 | AVIBANK MFG., INC. |
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Techincal Specification:
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 3.196 INCHES MINIMUM FIRST HOLE AND 3.256 INCHES MAXIMUM FIRST HOLE | | FASTENER LENGTH | 3.738 INCHES MINIMUM AND 3.768 INCHES MAXIMUM | | GRIP DIAMETER | 0.4363 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM | | GRIP LENGTH | 2.865 INCHES MINIMUM AND 2.885 INCHES MAXIMUM | | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM FASTENER AND 40.0 ROCKWELL C MAXIMUM FASTENER | | HEAD HEIGHT | 0.219 INCHES MINIMUM AND 0.234 INCHES MAXIMUM | | HEAD STYLE | DISHED HEXAGON | | MATERIAL | STEEL COMP E4340 FASTENER OR STEEL COMP 4140 FASTENER OR STEEL COMP 8740 FASTENER OR STEEL COMP 8735 FASTENER OR STEEL COMP 6150 FASTENER | | PROPRIETARY CHARACTERISTICS | PACS | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.438 INCHES | | SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES MINIMUM FIRST HOLE AND 0.116 INCHES MAXIMUM FIRST HOLE | | SPECIAL FEATURES | FASSEMBLY AREA EXTENDED AT THREADED END,0.402 MIN. AND 0.412 MAX. LENGTH 0.369 MIN. AND 0.372 MAX. DIAMETER; ASSEMBLY CONTAINS RETAINER PAWL,MATERIAL CRES PER AMS 5643,ROCKWELL HARDNESS 35.0 MIN. AND 39.0 MAX.,FINISH BLAST PER BAC 5951,PASSIVATE PER QQ-P-35,DRY FILM LUBE PER MIL-L-8937; SPRING,MATERIAL CRES PER AMS 5673,RICKWELL HARDNESS 48.0 MIN. FINISH PASSIVATE PER QQ-P-35; PIN AND PLUGS,MATERIAL 303 CRES PER ASTM A 582,FINISH PASSIVATE PER QQ-P-35 | | WIDTH BETWEEN FLATS | 0.679 INCHES MINIMUM AND 0.690 INCHES MAXIMUM | | SURFACE FINISH | 63.0 MICROINCHES BEARING SURFACE OF HEAD | | SURFACE FINISH | 32.0 MICROINCHES GRIP | | SURFACE FINISH | 32.0 MICROINCHES THREADS | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2 CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE FASTENER | | SURFACE TREATMENT | CADMIUM FASTENER AND CHROMATE FASTENER | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.471 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNJF |
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