5305-00-357-1710 SCREW,SHOULDER Index 5306-00-357-1728 BOLT,CLOSE TOLERANCE

National Stock Number:
5306-00-357-1727

Federal Supply Class:
5306

National Item Identification Number:
003571727

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:
109453-3-350392SPS TECHNOLOGIES INC
109453-3-356878SPS TECHNOLOGIES, LLC
AIC753-3-306725SPS TECHNOLOGIES, LLC
11825-3-356563ALIGN AEROSPACE LLC
11825-3-359563REID PRODUCTS INC.
109453-3-380539SPS TECHNOLOGIES, LLC
HP4553-3-30ZC92HEARTLAND PRECISION FASTENERS INC
HP5453-3-30ZC92HEARTLAND PRECISION FASTENERS INC
BM17019-3-317446HUCK INTERNATIONAL, INC
GS1016-3-31EM77B & B SPECIALTIES INC
FIT7047-3-358998FASTENER INNOVATION TECHNOLOGY, INC.
MB61-3-373197HI-SHEAR CORPORATION
BM17019-3-397928HUCK INTL INC
MB61-3-3L4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC
VAL23029-3-306710VALLEY-TODECO, INC.
VS3204-3-306950HOWMET GLOBAL FASTENING SYSTEMS INC
ST3M453-3-30UCY9M.S. AEROSPACE INC.
SLB252-3-316258SPACE-LOK, INC.
ST3M453-3-31VSL7HOUSTON PRECISION FASTENERS I LP
PBF1253-3-327624SPS TECHNOLOGIES LLC
SII-1060-3-357928SONIC INDUSTRIES, INC.
WC453-3-360516WEST COAST AEROSPACE, INC.
ST3M453-3-376301THE BOEING COMPANY
US3204-3-392215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
FASTENER LENGTH0.503 INCHES MINIMUM AND 0.550 INCHES MAXIMUM
GRIP LENGTH0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM
GRIP DIAMETER0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM
HEAD HEIGHT0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM
HEAD STYLEDOUBLE HEXAGON
MATERIALSTEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES
WIDTH BETWEEN FLATS0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM
THREAD CLASS3A
THREAD LENGTH0.305 INCHES MINIMUM AND 0.372 INCHES MAXIMUM
THREAD DIRECTIONRIGHT-HAND
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH32


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