5310-00-579-0631 WASHER,FLAT Index 5305-00-579-0647 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-00-579-0640

Federal Supply Class:
5305

National Item Identification Number:
005790640

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:
S963A5-2026512NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.503 INCHES MINIMUM AND
0.518 INCHES MAXIMUM
FASTENER LENGTH1.737 INCHES MINIMUM AND
1.784 INCHES MAXIMUM
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM OVERALL
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
HEAD STYLEFLAT COUNTERSUNK
HEAD DIAMETER0.630 INCHES NOMINAL
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.188 INCHES MINIMUM AND
0.190 INCHES MAXIMUM
THE MANUFACTURERS DATA
MANUFACTURERS CODE26512
DESIGN CONTROL REFERENCES963A5-20


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