5305-01-191-3120 SCREW,CAP,HEXAGON HEAD Index 5305-01-191-3122 SCREW,CLOSE TOLERANCE

National Stock Number:
5306-01-191-3121

Federal Supply Class:
5306

National Item Identification Number:
011913121

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:
122896-10D6980539SPS TECHNOLOGIES, LLC
AIC688-10D6906725SPS TECHNOLOGIES, LLC
S397-10D6917446HUCK INTERNATIONAL, INC
PBF1266-10D6927624SPS TECHNOLOGIES LLC
MB155-10D6973197HI-SHEAR CORPORATION
MB155-10D69L4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC
ST3M747-10D6906950HOWMET GLOBAL FASTENING SYSTEMS INC
ST3M747-10D690ZC92HEARTLAND PRECISION FASTENERS INC
ST3M747-10D6916258SPACE-LOK, INC.
ST3M747-10D691EM77B & B SPECIALTIES INC
ST3M747-10D691VSL7HOUSTON PRECISION FASTENERS I LP
ST3M747-10D6958998FASTENER INNOVATION TECHNOLOGY, INC.
ST3M747-10D6976301THE BOEING COMPANY
S397-10D6997928HUCK INTL INC
VCG0002-10D6906710VALLEY-TODECO, INC.
VS3191-10D6906950HOWMET GLOBAL FASTENING SYSTEMS INC
VS3191-10D6992215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER4.934 INCHES MINIMUM AND 5.011 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH5.063 INCHES MINIMUM AND 5.130 INCHES MAXIMUM
GRIP DIAMETER0.6235 INCHES MINIMUM AND 0.6240 INCHES MAXIMUM
GRIP LENGTH4.302 INCHES MINIMUM AND 4.322 INCHES MAXIMUM
HEAD HEIGHT0.350 INCHES NOMINAL
HEAD MINOR DIAMETER0.970 INCHES MINIMUM AND 0.978 INCHES MAXIMUM
HEAD STYLESPLINE DRIVE SHEAR HEAD
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP XM-13 OVERALL
NOMINAL THREAD DIAMETER0.625 INCHES
SHANK UNTHREADED HOLE DIAMETER0.141 INCHES MINIMUM AND 0.146 INCHES MAXIMUM FIRST HOLE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.741 INCHES MINIMUM AND 0.828 INCHES MAXIMUM
THREAD QUANTITY PER INCH18
THREAD SERIES DESIGNATORUNJF


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