5306-00-357-1900 BOLT,CLOSE TOLERANCE Index 5306-00-357-1902 BOLT,CLOSE TOLERANCE

National Stock Number:
5306-00-357-1901

Federal Supply Class:
5306

National Item Identification Number:
003571901

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:
109453-6D6150392SPS TECHNOLOGIES INC
109453-6D6156878SPS TECHNOLOGIES, LLC
BM1719-6D6117446HUCK INTERNATIONAL, INC
GS1016-6D611EM77B & B SPECIALTIES INC
11825-6D6159563REID PRODUCTS INC.
BM17019-6D6197928HUCK INTL INC
ST3M453-6D6106725SPS TECHNOLOGIES, LLC
ST3M453-6D610JV78J M PRECISION INC
ST3M453-6D610UCY9M.S. AEROSPACE INC.
ST3M453-6D6127624SPS TECHNOLOGIES LLC
ST3M453-6D6157928SONIC INDUSTRIES, INC.
ST3M453-6D6158845ABOUNDING SECURITY INC DIV OF MAA CORP
MB61-6D6173197HI-SHEAR CORPORATION
MB61-6D61L4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC
VAL23029-6D6106710VALLEY-TODECO, INC.
ST3M453-6D6159764KENALOY PRODUCTS INC SUB MASCO CORP
ST3M453-6D6176301THE BOEING COMPANY
US3204-6D6192215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER4.187 INCHES MINIMUM AND 4.244 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH4.312 INCHES MINIMUM AND 4.359 INCHES MAXIMUM
GRIP DIAMETER0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM
GRIP LENGTH3.802 INCHES MINIMUM AND 3.822 INCHES MAXIMUM
HEAD HEIGHT0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM
HEAD STYLEDOUBLE HEXAGON
MATERIALSTEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER0.375 INCHES
SHANK UNTHREADED HOLE DIAMETER0.106 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE
SPECIFICATION/STANDARD DATA08524-B-17019 MANUFACTURERS STANDARD
WIDTH BETWEEN FLATS0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.490 INCHES MINIMUM AND 0.557 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH24


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