6640-00-898-9570 JAR,BELL Index 1630-00-898-9581 BRAKE,MULTIPLE DISK

National Stock Number:
5306-00-898-9580

Federal Supply Class:
5306

National Item Identification Number:
008989580

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:
AIC260-10-4906725SPS TECHNOLOGIES, LLC
BM55156-10-4917446HUCK INTERNATIONAL, INC
EWSB26-10-4956878SPS TECHNOLOGIES, LLC
EWSB26-10-4980539SPS TECHNOLOGIES, LLC
VS2106-10S4992215HOWMET GLOBAL FASTENING SYSTEMS INC
BM55156-10-4997928HUCK INTL INC


Techincal Specification:
THREAD SERIES DESIGNATORUNJF
NOMINAL THREAD DIAMETER0.625 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.717 INCHES MINIMUM
FASTENER LENGTH3.780 INCHES NOMINAL
MATERIALSTEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSPS-M-107,FSCM 03680 MFR REF SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-8837 TY 1 CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING51.0 ROCKWELL C MINIMUM AND
54.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH260000 POUNDS PER SQUARE INCH
HEAD STYLEDOUBLE HEXAGON
HEAD HEIGHT0.350 INCHES NOMINAL
WIDTH BETWEEN FLATS0.928 INCHES MINIMUM AND
0.940 INCHES MAXIMUM
GRIP LENGTH3.062 INCHES NOMINAL
GRIP DIAMETER0.6230 INCHES MINIMUM AND
0.6240 INCHES MAXIMUM
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER3.575 INCHES NOMINAL FIRST HOLE
SHANK UNTHREADED HOLE DIAMETER0.141 INCHES NOMINAL FIRST HOLE
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT


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