5305-01-045-2466 SCREW,CAP,HEXAGON HEAD Index 5305-01-045-2468 SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-045-2467

Federal Supply Class:
5305

National Item Identification Number:
010452467

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:
51B223-5406725SPS TECHNOLOGIES, LLC
51B223-5406950HOWMET GLOBAL FASTENING SYSTEMS INC
51B223-540JRC1NORTHROP GRUMMAN TECHNICAL SERVICES, INC.
51B223-5427624SPS TECHNOLOGIES LLC
51B223-5473197HI-SHEAR CORPORATION
51B223-5476823NORTHROP GRUMMAN SYSTEMS CORPORATION
51B223-6406725SPS TECHNOLOGIES, LLC
51B223-6406950HOWMET GLOBAL FASTENING SYSTEMS INC
51B223-6427624SPS TECHNOLOGIES LLC
51B223-6473197HI-SHEAR CORPORATION
51B223-5479U29NORTHROP GRUMMAN SYSTEMS CORPORATION
51B223-5480539SPS TECHNOLOGIES, LLC
51B223-6480539SPS TECHNOLOGIES, LLC
51B223-5492215HOWMET GLOBAL FASTENING SYSTEMS INC
51B223-6492215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
FASTENER LENGTH3.735 INCHES MINIMUM AND 3.782 INCHES MAXIMUM
GRIP DIAMETER0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM
GRIP LENGTH3.360 INCHES MINIMUM AND 3.390 INCHES MAXIMUM
HARDNESS RATING39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.162 INCHES MINIMUM AND 0.183 INCHES MAXIMUM
HEAD DIAMETER0.568 INCHES MINIMUM AND 0.593 INCHES MAXIMUM
HEAD STYLEROUND
INTERNAL DRIVE STYLEOFFSET CRUCIFORM (TORQUE SET)
MATERIALSTEEL COMP 8740 OR STEEL COMP E4340 OR STEEL COMP 4340 OVERALL
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.312 INCHES
SPECIFICATION/STANDARD DATA86823-51B223 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD LENGTH0.345 INCHES MINIMUM AND 0.422 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH24


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