5306-01-266-8574 BOLT,CLOSE TOLERANCE Index 5306-01-266-8576 BOLT,CLOSE TOLERANCE

National Stock Number:
5306-01-266-8575

Federal Supply Class:
5306

National Item Identification Number:
012668575

Description:
BOLT,CLOSE TOLERANCE

Detail:
An externally threaded fastener whose unthreaded portion is of a specified 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. 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. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see BOLT, SHEAR. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see BOLT, MACHINE.


Manufacturer Information:
11701A12U03359563REID PRODUCTS INC.
68485-12A03356878SPS TECHNOLOGIES, LLC
BM3210-12A03317446HUCK INTERNATIONAL, INC
BM3210-12A03397928HUCK INTL INC
PBF1042A12U03327624SPS TECHNOLOGIES LLC
STSBG001A12U03306725SPS TECHNOLOGIES, LLC
STSBG001A12U03357928SONIC INDUSTRIES, INC.
STSBG001A12U03398897LOCKHEED MARTIN CORP
VAL23602-12D03306710VALLEY-TODECO, INC.


Techincal Specification:
FASTENER LENGTH3.121 INCHES NOMINAL
FEATURES PROVIDEDCETYL ALCOHOL LUBRICANT
GRIP DIAMETER0.748 INCHES MINIMUM AND 0.749 INCHES MAXIMUM
GRIP LENGTH2.062 INCHES NOMINAL
HEAD HEIGHT0.400 INCHES NOMINAL
HEAD STYLEDOUBLE HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP H11 OVERALL
NOMINAL THREAD DIAMETER0.750 INCHES
WIDTH BETWEEN FLATS1.052 INCHES MINIMUM AND 1.064 INCHES MAXIMUM
SURFACE TREATMENTCADMIUM AND NICKEL AND CHROMATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.059 INCHES NOMINAL
THREAD QUANTITY PER INCH16
THREAD SERIES DESIGNATORUNJF


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