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National Stock Number:
5306-14-346-2819
Federal Supply Class:
5306
National Item Identification Number:
143462819
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.
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Manufacturer Information:
| 38460BE052006ME | F6117 | DASSAULT AVIATION |
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Techincal Specification:
| EXTERNAL THREAD TOLERANCE CLASS | 4H | | FASTENER LENGTH | 14.3 MILLIMETERS MINIMUM AND 14.7 MILLIMETERS MAXIMUM | | GRIP DIAMETER | 5.188 MILLIMETERS MINIMUM AND 5.200 MILLIMETERS MAXIMUM | | GRIP LENGTH | 5.6 MILLIMETERS MINIMUM AND 6.0 MILLIMETERS MAXIMUM | | HEAD DIAMETER | 7.9 MILLIMETERS MINIMUM AND 8.5 MILLIMETERS MAXIMUM | | HEAD HEIGHT | 2.6 MILLIMETERS MINIMUM AND 3.0 MILLIMETERS MAXIMUM | | HEAD STYLE | UNDERCUT PAN NO. 2 | | INTERNAL DRIVE LOCATION | SHANK END | | MATERIAL | STEEL COMP 30NCD16 OVERALL | | III INTERNAL DRIVE STYLE | HEXAGON | | MINIMUM TENSILE STRENGTH | 1080 MEGAPASCALS | | MINIMUM YIELD STRENGTH | 8800 MEGAPASCALS | | NOMINAL THREAD DIAMETER | 5.0 MILLIMETERS | | SURFACE FINISH | 0.8 MICROMETERS BEARING SURFACE OF HEAD | | SURFACE TREATMENT | ME-CHROMATATION OVERALL | | TEST DATA DOCUMENT | F3025-AIR 9173 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.). | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 8.5 MILLIMETERS NOMINAL | | THREAD SERIES DESIGNATOR | ISO M | | THREAD PITCH IN MILLIMETERS | 0.8 |
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