5306-01-517-5195 BOLT,CLOSE TOLERANCE Index 5306-01-517-5197 BOLT,CLOSE TOLERANCE

National Stock Number:
5306-01-517-5196

Federal Supply Class:
5306

National Item Identification Number:
015175196

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:
BACB30LJ4U1906725SPS TECHNOLOGIES, LLC
BACB30LJ4U1956878SPS TECHNOLOGIES, LLC
BACB30LJ4U1981205THE BOEING COMPANY


Techincal Specification:
MATERIAL DOCUMENT AND CLASSIFICATIONSAE-AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR SAE-AMS 5853 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALIRON ALLOY 660 OVERALL
PROPRIETARY CHARACTERISTICSPACS
MINIMUM TENSILE STRENGTH95000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.2500 INCHES
SPECIAL FEATURESMAXIMUM SERVICE TEMPERATURE 1200.0 DEGREES F; MAY HAVE EITHER FLAT OR DISHED HEXAGON HEAD
WIDTH BETWEEN FLATS0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONSAE-AMS-QQ-P-35, TYPE II OR TYPE VIII ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.389 INCHES NOMINAL
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNJF
FASTENER LENGTH1.5615 INCHES MINIMUM AND 1.5915 INCHES MAXIMUM
GRIP DIAMETER0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
GRIP LENGTH1.1775 INCHES MINIMUM AND 1.1975 INCHES MAXIMUM
HEAD HEIGHT0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM
HEAD STYLEHEXAGON


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