5305-01-277-4342 SCREW,SHOULDER Index 5305-01-277-4344 SCREW,CLOSE TOLERANCE

National Stock Number:
5306-01-277-4343

Federal Supply Class:
5306

National Item Identification Number:
012774343

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:
10116194A486GNIMIKKEISTOKESKUS NCB FINLAND
122895-6D1880539SPS TECHNOLOGIES, LLC
AIC687-6D1806725SPS TECHNOLOGIES, LLC
GS1015-6D181EM77B & B SPECIALTIES INC
MB154-6D1873197HI-SHEAR CORPORATION
MB154-6D18L4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC
S406-6D1817446HUCK INTERNATIONAL, INC
PBF1265-6D1827624SPS TECHNOLOGIES LLC
ST3M744-6D1857928SONIC INDUSTRIES, INC.
ST3M744-6D1859563REID PRODUCTS INC.
ST3M744-6D1860516WEST COAST AEROSPACE, INC.
ST3M744-6D1876301THE BOEING COMPANY
ST3M744-6D1892215HOWMET GLOBAL FASTENING SYSTEMS INC
S406-6D1897928HUCK INTL INC
VCG0001-6D1806710VALLEY-TODECO, INC.
VS3174-6D1806950HOWMET GLOBAL FASTENING SYSTEMS INC
VS3174-6D1892215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER1.398 INCHES MINIMUM AND 1.408 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH1.506 INCHES MINIMUM AND 1.526 INCHES MAXIMUM
GRIP DIAMETER0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM
GRIP LENGTH1.388 INCHES MINIMUM AND 1.418 INCHES MAXIMUM
HEAD HEIGHT0.210 INCHES NOMINAL
HEAD MINOR DIAMETER0.578 INCHES MINIMUM AND 0.585 INCHES MAXIMUM
HEAD STYLESPLINE DRIVE SHEAR HEAD
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP XM-13 OVERALL
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.375 INCHES
SHANK UNTHREADED HOLE DIAMETER0.106 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD LENGTH0.371 INCHES MINIMUM AND 0.411 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH24


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