5306-14-514-7807 BOLT,CLOSE TOLERANCE Index 5365-14-514-7809 SHIM

National Stock Number:
5306-14-514-7808

Federal Supply Class:
5306

National Item Identification Number:
145147808

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:
22201BE083014LEF6117DASSAULT AVIATION
38150BE083014LEF6117DASSAULT AVIATION


Techincal Specification:
EXTERNAL THREAD TOLERANCE CLASS4H
FASTENER LENGTH25.5 MILLIMETERS NOMINAL
GRIP DIAMETER8.3 MILLIMETERS NOMINAL
GRIP LENGTH14.0 MILLIMETERS NOMINAL
HEAD HEIGHT4.0 MILLIMETERS NOMINAL
HEAD STYLEERR-090
MATERIAL DOCUMENT AND CLASSIFICATIONF3025 AIR 9173 MIL STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 30NCD16 OVERALL
MINIMUM TENSILE STRENGTH1080.0 MEGAPASCALS
NOMINAL THREAD DIAMETER8.0 MILLIMETERS
WIDTH BETWEEN FLATS13.0 MILLIMETERS NOMINAL
SUPPLEMENTARY FEATURES1ERE REPARATION NFL 22-090
SURFACE FINISH0.8 MICROMETERS BEARING SURFACE OF HEAD
SURFACE FINISH0.8 MICROMETERS GRIP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONNF L 09-753 CODE LE MIL STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL AND CHROMATE OVERALL
TEST DATA DOCUMENTF3025-AIR 9173 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.).
THREAD DIRECTIONRIGHT-HAND
THREAD FORMING METHODROLLED
THREAD LENGTH11.5 MILLIMETERS NOMINAL
THREAD SERIES DESIGNATORISO M
THREAD PITCH IN MILLIMETERS1.25


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