5305-01-340-6944 SCREW,EXTERNALLY RELIEVED BODY Index 5305-01-340-6946 SCREW,CAP,SOCKET HEAD

National Stock Number:
5306-01-340-6945

Federal Supply Class:
5306

National Item Identification Number:
013406945

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.


Manufacturer Information:
BACB30US6K2606710VALLEY-TODECO, INC.
BACB30US6K2606725SPS TECHNOLOGIES, LLC
BACB30US6K2617446HUCK INTERNATIONAL, INC
BACB30US6K2617943FEDERAL MANUFACTURING CORP
BACB30US6K2627624SPS TECHNOLOGIES LLC
BACB30US6K2656878SPS TECHNOLOGIES, LLC
BACB30US6K2657928SONIC INDUSTRIES, INC.
BACB30US6K2681205THE BOEING COMPANY
BACB30US6K2692215HOWMET GLOBAL FASTENING SYSTEMS INC
BACB30US6K2697928HUCK INTL INC


Techincal Specification:
EXTENDED WASHER DIAMETER0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.081 INCHES MINIMUM AND 0.101 INCHES MAXIMUM
FASTENER LENGTH3.878 INCHES MINIMUM AND 3.908 INCHES MAXIMUM
GRIP DIAMETER0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM
GRIP LENGTH3.240 INCHES MINIMUM AND 3.260 INCHES MAXIMUM
HEAD HEIGHT0.330 INCHES MINIMUM AND 0.360 INCHES MAXIMUM
HEAD STYLEDOUBLE HEXAGON W/HOLE
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALNICKEL ALLOY 718 OVERALL
MINIMUM TENSILE STRENGTH220000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.375 INCHES
WIDTH BETWEEN FLATS0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD32.0 MICROINCHES GRIP32.0 MICROINCHES THREADS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONBMS10-85,CAGEC 81205 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTALUMINUM OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.643 INCHES NOMINAL
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH24


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