5306-01-133-1570 BOLT,CLOSE TOLERANCE Index 5305-01-133-1572 SCREW,CLOSE TOLERANCE

National Stock Number:
5306-01-133-1571

Federal Supply Class:
5306

National Item Identification Number:
011331571

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:
10115911A486GNIMIKKEISTOKESKUS NCB FINLAND
11823-8D6659563REID PRODUCTS INC.
AIC687-8D6606725SPS TECHNOLOGIES, LLC
GS1015--8D661EM77B & B SPECIALTIES INC
122895-8D6656878SPS TECHNOLOGIES, LLC
122895-8D6680539SPS TECHNOLOGIES, LLC
ST3M744-8D660ZC92HEARTLAND PRECISION FASTENERS INC
SLB748-8D6616258SPACE-LOK, INC.
ST3M744-8D661VSL7HOUSTON PRECISION FASTENERS I LP
PBF1265-8D6627624SPS TECHNOLOGIES LLC
ST3M7448D6658998FASTENER INNOVATION TECHNOLOGY, INC.
MB154-8D6673197HI-SHEAR CORPORATION
ST3M744-8D6676301THE BOEING COMPANY
S406-8D6697928HUCK INTL INC
VCG0001-8D6606710VALLEY-TODECO, INC.
VS3174-8D6606950HOWMET GLOBAL FASTENING SYSTEMS INC
WC744-8D6660516WEST COAST AEROSPACE, INC.
VS3174-8D6692215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER4.443 INCHES MINIMUM AND 4.473 INCHES MAXIMUM ALL HOLES
FASTENER LENGTH4.568 INCHES MINIMUM AND 4.588 INCHES MAXIMUM
GRIP DIAMETER0.4990 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM
GRIP LENGTH4.115 INCHES MINIMUM AND 4.135 INCHES MAXIMUM
HEAD HEIGHT0.281 INCHES NOMINAL
HEAD STYLESPLINE DRIVE SHEAR HEAD
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP XM-13 OVERALL
NOMINAL THREAD DIAMETER0.500 INCHES
WIDTH BETWEEN FLATS0.774 INCHES MINIMUM AND 0.782 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD LENGTH0.433 INCHES MINIMUM AND 0.473 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH20


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