5305-01-297-7538 SCREW,CAP,HEXAGON HEAD Index 5306-01-297-7540 BOLT,CLOSE TOLERANCE

National Stock Number:
5306-01-297-7539

Federal Supply Class:
5306

National Item Identification Number:
012977539

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:
109453-10-3156878SPS TECHNOLOGIES, LLC
109453-10-3180539SPS TECHNOLOGIES, LLC
AIC753-10-3106725SPS TECHNOLOGIES, LLC
BM17019-10-3117446HUCK INTERNATIONAL, INC
11825-10-3159563REID PRODUCTS INC.
BM17019-10-3197928HUCK INTL INC
HP5453-10-310ZC92HEARTLAND PRECISION FASTENERS INC
GS1016-10-311EM77B & B SPECIALTIES INC
PBF1253-10-3127624SPS TECHNOLOGIES LLC
S11-1060-10-3157928SONIC INDUSTRIES, INC.
MA5453-10-3158845ABOUNDING SECURITY INC DIV OF MAA CORP
KS3020-10-3159764KENALOY PRODUCTS INC SUB MASCO CORP
MB61-10-3173197HI-SHEAR CORPORATION
MB61-10-31L4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC
VAL23029-10-3106710VALLEY-TODECO, INC.
VS3204-10-3106950HOWMET GLOBAL FASTENING SYSTEMS INC
ST3M453-10-310K6Z0SATURN FASTENERS INC
SLB252-10-3116258SPACE-LOK, INC.
S353-10-3117446HUCK INTERNATIONAL, INC
ST3M453-10-311VSL7HOUSTON PRECISION FASTENERS I LP
WC453-10-3160516WEST COAST AEROSPACE, INC.
ST3M453-10-3176301THE BOEING COMPANY
VS3204-10-3192215HOWMET GLOBAL FASTENING SYSTEMS INC
S353-10-3197928HUCK INTL INC


Techincal Specification:
FASTENER LENGTH2.699 INCHES MINIMUM AND 2.746 INCHES MAXIMUM
GRIP DIAMETER0.6235 INCHES MINIMUM AND 0.6240 INCHES MAXIMUM
GRIP LENGTH1.928 INCHES MINIMUM AND 1.948 INCHES MAXIMUM
HEAD HEIGHT0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM
HEAD STYLEDOUBLE HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP XM-13 OVERALL
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.625 INCHES
WIDTH BETWEEN FLATS0.940 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD LENGTH0.751 INCHES MINIMUM AND 0.818 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH18


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