5305-01-169-9617 SCREW,CLOSE TOLERANCE Index 4710-01-169-9619 TUBE,BENT,METALLIC

National Stock Number:
5305-01-169-9618

Federal Supply Class:
5305

National Item Identification Number:
011699618

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:
AS269-8-4484256AVIBANK MFG., INC.
SS5112-84416258SPACE-LOK, INC.
SS5112-84473197HI-SHEAR CORPORATION
SS5112-84478286SIKORSKY AIRCRAFT CORPORATION
SS5112-84484256AVIBANK MFG., INC.
SS5112-844L4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER3.263 INCHES MINIMUM AND 3.283 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH3.396 INCHES MINIMUM AND 3.416 INCHES MAXIMUM
GRIP DIAMETER0.4986 INCHES MINIMUM AND 0.4991 INCHES MAXIMUM
GRIP LENGTH2.750 INCHES MINIMUM AND 2.766 INCHES MAXIMUM
HEAD HEIGHT0.251 INCHES MINIMUM AND 0.266 INCHES MAXIMUM
HEAD STYLECROWNED HEXAGON
INTERNAL DRIVE STYLESLOT
LOCKING FEATUREDETENT BALL GRIP
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5629 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
MINIMUM TENSILE STRENGTH63000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.500 INCHES
SHANK UNTHREADED HOLE DIAMETER0.106 INCHES MINIMUM AND 0.116 INCHES MAXIMUM FIRST HOLE
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.396 INCHES MINIMUM AND 0.447 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF)
THREAD QUANTITY PER INCH20
WIDTH BETWEEN FLATS0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM


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