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National Stock Number:
5306-00-144-0393
Federal Supply Class:
5306
National Item Identification Number:
001440393
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:
| 10930585 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJC | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | THREAD QUANTITY PER INCH | 16 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.935 INCHES MINIMUM AND | | 1.060 INCHES MAXIMUM | | FASTENER LENGTH | 1.375 INCHES MINIMUM AND | | 1.406 INCHES MAXIMUM | | MATERIAL | PLASTIC POLYHEXAMETHYLENE AMIDE LOCKING FEATURE | | STEEL COMP H11 FASTENER | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-F-18240 MIL SPEC SINGLE MATERIAL RESPONSE LOCKING FEATURE | | AMS 6485 ASSN STD SINGLE MATERIAL RESPONSE BEARING SURFACE OF HEAD | | SURFACE TREATMENT | CADMIUM FASTENER | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-8837, TYPE 1, CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE FASTENER | | HARDNESS RATING | 51.0 ROCKWELL C MINIMUM AND | | 53.0 ROCKWELL C MAXIMUM OVERALL | | MINIMUM TENSILE STRENGTH | 260000 POUNDS PER SQUARE INCH | | MINIMUM YIELD STRENGTH | 215000 POUNDS PER SQUARE INCH | | HEAD STYLE | DOUBLE HEXAGON W/HOLE | | HEAD HEIGHT | 0.405 INCHES NOMINAL | | WIDTH BETWEEN FLATS | 0.492 INCHES MINIMUM AND | | 0.502 INCHES MAXIMUM | | EXTENDED WASHER DIAMETER | 0.715 INCHES MINIMUM AND | | 0.725 INCHES MAXIMUM | | EXTENDED WASHER THICKNESS | 0.075 INCHES NOMINAL | | LOCKING FEATURE | STRIP THREADS | | GRIP LENGTH | 0.346 INCHES NOMINAL | | GRIP DIAMETER | 0.3735 INCHES MINIMUM AND | | 0.3745 INCHES MAXIMUM | | SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD | | 32.0 MICROINCHES GRIP | | SPECIAL FEATURES | ROLL THREADS |
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