5306-01-309-4784 BOLT,CLOSE TOLERANCE Index 5305-01-309-4786 SCREW,CLOSE TOLERANCE

National Stock Number:
5306-01-309-4785

Federal Supply Class:
5306

National Item Identification Number:
013094785

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:
74697-M1015-1080539SPS TECHNOLOGIES, LLC
BACB30SX10-1017943FEDERAL MANUFACTURING CORP
BACB30SX10-1027624SPS TECHNOLOGIES LLC
BACB30SX10-1056878SPS TECHNOLOGIES, LLC
BACB30SX10-1081205THE BOEING COMPANY
VS3078-10-1092215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
EXTERNAL THREAD TOLERANCE CLASS6G
FASTENER LENGTH29.5 MILLIMETERS MINIMUM AND 34.5 MILLIMETERS MAXIMUM
GRIP DIAMETER9.985 MILLIMETERS MINIMUM AND 10.000 MILLIMETERS MAXIMUM
GRIP LENGTH9.75 MILLIMETERS MINIMUM AND 10.00 MILLIMETERS MAXIMUM
HEAD STYLEHEXAGON
HEAD HEIGHT6.82 MILLIMETERS MINIMUM AND 7.18 MILLIMETERS MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALIRON ALLOY 660 OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
NOMINAL THREAD DIAMETER10.0 MILLIMETERS
SURFACE FINISH3.2 MICROMETERS BEARING SURFACE OF HEAD
SURFACE FINISH3.2 MICROMETERS GRIP
SURFACE FINISH3.2 MICROMETERS THREADS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH22.0 MILLIMETERS MINIMUM
THREAD PITCH IN MILLIMETERS1.5
THREAD SERIES DESIGNATORM
WIDTH BETWEEN FLATS16.73 MILLIMETERS MINIMUM AND 17.00 MILLIMETERS MAXIMUM


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