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National Stock Number:
5306-01-188-9626
Federal Supply Class:
5306
National Item Identification Number:
011889626
Description:
BOLT,MACHINE
Detail:
A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. 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. The unthreaded portion is of specific 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. A locking feature may be incorporated in the design of the head or threads. See BOLT, MACHINE and BOLT, CLEVIS.
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Manufacturer Information:
| NAS568C97 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |
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Techincal Specification:
| THREAD DIRECTION | RIGHT-HAND | | FASTENER LENGTH | 3.015 INCHES MINIMUM AND | | 3.062 INCHES MAXIMUM | | MATERIAL | IRON ALLOY 660 OVERALL | | THREAD LENGTH | 2.855 INCHES MINIMUM AND | | 3.032 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 3A | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND | | 40.0 ROCKWELL C MAXIMUM OVERALL | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | HEAD HEIGHT | 0.365 INCHES MINIMUM AND | | 0.385 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.740 INCHES MINIMUM AND | | 0.752 INCHES MAXIMUM | | HOLE CONFIGURATION STYLE | HEXAGON CORNERS | | HOLE TYPE | DRILLED | | HOLE QUANTITY | 3 | | HOLE DIAMETER | 0.070 INCHES MINIMUM AND | | 0.080 INCHES MAXIMUM | | GRIP LENGTH | 0.030 INCHES MINIMUM AND | | 0.060 INCHES MAXIMUM | | GRIP DIAMETER | 0.4643 INCHES MINIMUM AND | | 0.5000 INCHES MAXIMUM | | SPECIFICATION/STANDARD DATA | 80205-NAS568 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
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