5306-01-025-4825 BOLT,SHEAR Index 5306-01-025-4827 ROD,CONTINUOUS THREAD

National Stock Number:
5306-01-025-4826

Federal Supply Class:
5306

National Item Identification Number:
010254826

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:
ST3M553D14-7876301THE BOEING COMPANY


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER5.908 INCHES MINIMUM AND 5.938 INCHES MAXIMUM FIRST HOLE
EXTENDED WASHER DIAMETER1.428 INCHES MINIMUM AND 1.438 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.188 INCHES MINIMUM AND 0.208 INCHES MAXIMUM
FASTENER LENGTH6.054 INCHES MINIMUM AND 6.084 INCHES MAXIMUM
GRIP DIAMETER0.8730 INCHES MINIMUM AND 0.8740 INCHES MAXIMUM
GRIP LENGTH4.865 INCHES MINIMUM AND 4.885 INCHES MAXIMUM
HARDNESS RATING39.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.798 INCHES MINIMUM AND 0.818 INCHES MAXIMUM
HEAD STYLEDOUBLE HEXAGON W/HOLE
MATERIALSTEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 6150 OVERALL
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.875 INCHES
SHANK UNTHREADED HOLE DIAMETER0.093 INCHES MINIMUM AND 0.098 INCHES MAXIMUM FIRST HOLE
SPECIFICATION/STANDARD DATA76301-ST3-553 MANUFACTURERS STANDARD
WIDTH BETWEEN FLATS0.934 INCHES MINIMUM AND 0.943 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONNAS672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.169 INCHES MINIMUM AND 1.219 INCHES MAXIMUM
THREAD QUANTITY PER INCH14
THREAD SERIES DESIGNATORUNJF


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