5340-00-978-7916 STANDOFF,THREADED,SPACING Index 5310-00-978-7918 WASHER,FLAT

National Stock Number:
5305-00-978-7917

Federal Supply Class:
5305

National Item Identification Number:
009787917

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:
9251104050019315HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS FORMER BENDIX NAVIGATION AND CONTROL SYSTEMS
9251104050055972HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS


Techincal Specification:
COUNTERSINK ANGLE80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
FASTENER LENGTH0.312 INCHES NOMINAL
FEATURES PROVIDEDCASEHARDENED
HEAD DIAMETER0.218 INCHES MINIMUM AND 0.225 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLESIX SPLINE
MATERIALSTEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER0.112 INCHES
SPLINE MAJOR DIAMETER0.073 INCHES MINIMUM AND 0.074 INCHES MAXIMUM
SPLINE MINOR DIAMETER0.063 INCHES MINIMUM AND 0.064 INCHES MAXIMUM
SPLINE WIDTH0.015 INCHES MINIMUM AND 0.016 INCHES MAXIMUM
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3A
THREAD LENGTH0.312 INCHES NOMINAL
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH40
THREAD SERIES DESIGNATORUNC


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