5305-01-211-0682 SCREW,CLOSE TOLERANCE Index 5305-01-211-0684 SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-211-0683

Federal Supply Class:
5305

National Item Identification Number:
012110683

Description:
SCREW,CLOSE TOLERANCE

Detail:
A SCREW, MACHINE or SCREW, CAP, SOCKET HEAD whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 IN.) (0.025 mm) or less of a specific diameter for items (1.000 IN.) (25 mm) or less in diameter. Items over (1.000 IN.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 IN.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 IN.) (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 designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.


Manufacturer Information:
BACB30EL6-7456878SPS TECHNOLOGIES, LLC
BACB30EL6-7473197HI-SHEAR CORPORATION
BACB30EL6-7480539SPS TECHNOLOGIES, LLC
BACB30EL6-7481205THE BOEING COMPANY
BACB30EL6-7492215HOWMET GLOBAL FASTENING SYSTEMS INC
BACB30EL6-7497928HUCK INTL INC
BACB30EL6C7406950HOWMET GLOBAL FASTENING SYSTEMS INC
BACB30EL6C7417446HUCK INTERNATIONAL, INC
BACB30EL6C741RC86HOWMET GLOBAL FASTENING SYSTEMS INC
BACB30EL6C7456878SPS TECHNOLOGIES, LLC
BACB30EL6C7473197HI-SHEAR CORPORATION
BACB30EL6C7481205THE BOEING COMPANY
BACB30EL6C749N513VOI-SHAN/CHATSWORTH DIV OF VSI CORP SUB OF FAIRCHILD INDUSTRIES INC
BACB30EL6C74L4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC


Techincal Specification:
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH5.001 INCHES MINIMUM AND 5.031 INCHES MAXIMUM
GRIP DIAMETER0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM
GRIP LENGTH4.615 INCHES MINIMUM AND 4.635 INCHES MAXIMUM
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER0.515 INCHES MINIMUM AND 0.566 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLEHIGH-TORQUE
MATERIALSTEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 6150 OR STEEL COMP 4130 OVERALL
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.375 INCHES
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.366 INCHES MINIMUM AND 0.416 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH24


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