5305-00-857-3531 SCREW,CAP,SOCKET HEAD Index 5310-00-857-3543 WASHER,FLAT

National Stock Number:
5305-00-857-3536

Federal Supply Class:
5305

National Item Identification Number:
008573536

Description:
SCREW,CAP,SOCKET HEAD

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.


Manufacturer Information:
S963-4-1526512NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER1.376 INCHES NOMINAL FIRST HOLE
FASTENER LENGTH1.393 INCHES NOMINAL
HEAD DIAMETER0.502 INCHES NOMINAL
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL OVERALL
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.250 INCHES
SHANK UNTHREADED HOLE DIAMETER0.076 INCHES NOMINAL FIRST HOLE
WIDTH ACROSS FLATS0.157 INCHES NOMINAL
SURFACE TREATMENTCADMIUM OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD LENGTH0.424 INCHES MINIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH28


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