5305-00-139-8054 SCREW,MACHINE Index 7105-00-139-8063 CHAIR STRT RED FAB

National Stock Number:
5306-00-139-8056

Federal Supply Class:
5306

National Item Identification Number:
001398056

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:
11701A07D10659563REID PRODUCTS INC.
68485-7-10656878SPS TECHNOLOGIES, LLC
68485-7-10680539SPS TECHNOLOGIES, LLC
AIC2264A07D10606725SPS TECHNOLOGIES, LLC
BM3210-7A106D17446HUCK INTERNATIONAL, INC
BM3210-7A106D97928HUCK INTL INC
PBF1042A7D10627624SPS TECHNOLOGIES LLC
STSBG001A07D10656878SPS TECHNOLOGIES, LLC
STSBG001A07D10698897LOCKHEED MARTIN CORP
VAL23602-7DS10606710VALLEY-TODECO, INC.
VS2979A07D10692215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER6.979 INCHES MINIMUM AND 7.011 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH7.104 INCHES MINIMUM AND 7.151 INCHES MAXIMUM
GRIP DIAMETER0.4360 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM
GRIP LENGTH6.625 INCHES NOMINAL
HEAD HEIGHT0.257 INCHES NOMINAL
HEAD STYLEDOUBLE HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP H11 OVERALL
MINIMUM TENSILE STRENGTH156000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.438 INCHES
SHANK UNTHREADED HOLE DIAMETER0.106 INCHES NOMINAL FIRST HOLE
WIDTH BETWEEN FLATS0.678 INCHES MINIMUM AND 0.689 INCHES MAXIMUM
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2416 ASSN STD ALL TREATMENT RESPONSES OVERALL
SURFACE TREATMENTNICKEL AND CADMIUM OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNJF


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