5306-01-332-2171 BOLT,CLOSE TOLERANCE Index 5305-01-332-2173 SCREW,CLOSE TOLERANCE

National Stock Number:
5306-01-332-2172

Federal Supply Class:
5306

National Item Identification Number:
013322172

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:
11701A07U01759563REID PRODUCTS INC.
68485-7A01756878SPS TECHNOLOGIES, LLC
AIC2264A07U0106725SPS TECHNOLOGIES, LLC
BM321-7A01717446HUCK INTERNATIONAL, INC
PBF1042A7U01727624SPS TECHNOLOGIES LLC
BM321-7A01797928HUCK INTL INC
VAL23602-7D0106710VALLEY-TODECO, INC.
VS2979A07U01706950HOWMET GLOBAL FASTENING SYSTEMS INC
VS2979A07U01792215HOWMET GLOBAL FASTENING SYSTEMS INC
STSBG001A07U01798897LOCKHEED MARTIN CORP


Techincal Specification:
FASTENER LENGTH1.479 INCHES MINIMUM AND 1.526 INCHES MAXIMUM
FEATURES PROVIDEDCETYL ALCOHOL LUBRICANT
GRIP DIAMETER0.4370 INCHES MINIMUM AND 0.4380 INCHES MAXIMUM
GRIP LENGTH1.062 INCHES NOMINAL
HEAD HEIGHT0.257 INCHES NOMINAL
HEAD STYLEDOUBLE HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONSTSBS001,CAGEC 98897 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP H11 OVERALL
PROPRIETARY CHARACTERISTICSPACS
MINIMUM TENSILE STRENGTH156000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.437 INCHES
WIDTH BETWEEN FLATS0.678 INCHES MINIMUM AND 0.689 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONSTSBS001,CAGEC 98897 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCHROMATE OVERALL AND NICKEL OVERALL AND CADMIUM OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.495 INCHES NOMINAL
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNJF


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