5305-01-240-4026 SCREW,SHOULDER Index 5306-01-240-4028 BOLT,CLOSE TOLERANCE

National Stock Number:
5306-01-240-4027

Federal Supply Class:
5306

National Item Identification Number:
012404027

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:
109453-6-956878SPS TECHNOLOGIES, LLC
109453-6-980539SPS TECHNOLOGIES, LLC
AIC753-6-906725SPS TECHNOLOGIES, LLC
BM17019-6-917446HUCK INTERNATIONAL, INC
11825-6-959563REID PRODUCTS INC.
BM17019-6-997928HUCK INTL INC
GS1016-6-91EM77B & B SPECIALTIES INC
PBF1253-6-927624SPS TECHNOLOGIES LLC
S11-1060-6-957928SONIC INDUSTRIES, INC.
MA5453-6-958845ABOUNDING SECURITY INC DIV OF MAA CORP
FIT7047-6-958998FASTENER INNOVATION TECHNOLOGY, INC.
KS3020-6-959764KENALOY PRODUCTS INC SUB MASCO CORP
MB61-6-973197HI-SHEAR CORPORATION
MB61-6-9L4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC
ST3M453-6-9007R1TWIST TITE MFG, INC
VAL23029-6-906710VALLEY-TODECO, INC.
VS3204-6-906950HOWMET GLOBAL FASTENING SYSTEMS INC
ST3M453-6-906950HOWMET GLOBAL FASTENING SYSTEMS INC
ST3M453-6-90K6Z0SATURN FASTENERS INC
ST3M453-6-90PTK6SPS TECHNOLOGIES INC
ST3M453-6-90ZC92HEARTLAND PRECISION FASTENERS INC
SLB252-6-916258SPACE-LOK, INC.
S353-6-917446HUCK INTERNATIONAL, INC
ST3M453-6-917446HUCK INTERNATIONAL, INC
ST3M453-6-91VSL7HOUSTON PRECISION FASTENERS I LP
ST3M453-6-958998FASTENER INNOVATION TECHNOLOGY, INC.
ST3M453-6-976301THE BOEING COMPANY
ST3M453-6-980539SPS TECHNOLOGIES, LLC
VS3204-6-992215HOWMET GLOBAL FASTENING SYSTEMS INC
S353-6-997928HUCK INTL INC
WC453-6-960516WEST COAST AEROSPACE, INC.


Techincal Specification:
FASTENER LENGTH1.062 INCHES MINIMUM AND 1.109 INCHES MAXIMUM
GRIP LENGTH0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM
GRIP DIAMETER0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM
HEAD HEIGHT0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM
HEAD STYLEDOUBLE HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP XM-13 OVERALL
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.375 INCHES
WIDTH BETWEEN FLATS0.564 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD LENGTH0.490 INCHES MINIMUM AND 0.557 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH24


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