5305-01-209-7189 SCREW,SHOULDER Index 5306-01-209-7191 BOLT,CLOSE TOLERANCE

National Stock Number:
5306-01-209-7190

Federal Supply Class:
5306

National Item Identification Number:
012097190

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:
J413P024A07482GENERAL ELECTRIC COMPANY
J413P024A0UCY9M.S. AEROSPACE INC.
J413P024A23899J.W. MANUFACTURING, INC
J413P024A4GP55ACUFAST AIRCRAFT PRODUCTS


Techincal Specification:
EXTENDED WASHER DIAMETER0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM
FASTENER LENGTH1.014 INCHES MINIMUM AND 1.034 INCHES MAXIMUM
GRIP DIAMETER0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM
GRIP LENGTH0.464 INCHES MINIMUM AND 0.474 INCHES MAXIMUM
HEAD HEIGHT0.248 INCHES MINIMUM AND 0.268 INCHES MAXIMUM
HEAD STYLEDOUBLE HEXAGON EXTENDED WASHER
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALIRON ALLOY 660 OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES
WIDTH BETWEEN FLATS0.250 INCHES NOMINAL
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE FINISH32.0 MICROINCHES THREADS
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.540 INCHES MINIMUM AND 0.570 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH32


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