5306-01-127-3751 BOLT,CLOSE TOLERANCE Index 5305-01-127-3753 SCREW,CLOSE TOLERANCE

National Stock Number:
5306-01-127-3752

Federal Supply Class:
5306

National Item Identification Number:
011273752

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:
10115782A486GNIMIKKEISTOKESKUS NCB FINLAND
122895-5D1580539SPS TECHNOLOGIES, LLC
AIC687-5D1506725SPS TECHNOLOGIES, LLC
PBF1265-5D1527624SPS TECHNOLOGIES LLC
MB154-5D1573197HI-SHEAR CORPORATION
MB154-5D15L4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC
ST3M744-5D1506950HOWMET GLOBAL FASTENING SYSTEMS INC
ST3M744-5D150ZC92HEARTLAND PRECISION FASTENERS INC
ST3M744-5D1516258SPACE-LOK, INC.
S406-5D1517446HUCK INTERNATIONAL, INC
ST3M744-5D151EM77B & B SPECIALTIES INC
ST3M744-5D151VSL7HOUSTON PRECISION FASTENERS I LP
ST3M744-5D1558998FASTENER INNOVATION TECHNOLOGY, INC.
S406-5D1597928HUCK INTL INC
VCG0001-5D1506710VALLEY-TODECO, INC.
VS3174-5D1506950HOWMET GLOBAL FASTENING SYSTEMS INC
ST3M744-5D1559563REID PRODUCTS INC.
ST3M744-5D1560516WEST COAST AEROSPACE, INC.
ST3M744-5D1576301THE BOEING COMPANY
ST3M744-5D1592215HOWMET GLOBAL FASTENING SYSTEMS INC
VS3174-5D1592215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER1.185 INCHES MINIMUM AND 1.215 INCHES MAXIMUM ALL HOLES
FASTENER LENGTH1.303 INCHES MINIMUM AND 1.323 INCHES MAXIMUM
GRIP LENGTH0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM
GRIP DIAMETER0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM
HEAD HEIGHT0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM
HEAD STYLESPLINE DRIVE SHEAR HEAD
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP XM-13 OVERALL
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.312 INCHES
WIDTH BETWEEN FLATS0.514 INCHES MINIMUM AND 0.521 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD LENGTH0.355 INCHES MINIMUM AND 0.395 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH24


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