1730-00-816-6781 LOCK,AIRCRAFT GROUND SAFETY Index 2840-00-816-6786 RETAINER,SPRING

National Stock Number:
5305-00-816-6783

Federal Supply Class:
5305

National Item Identification Number:
008166783

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:
59113121450ARMY WEAPONS COMMAND ATTN AMSWE-REE-S


Techincal Specification:
FASTENER LENGTH1.000 INCHES NOMINAL
HEAD DIAMETER0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
HEAD HEIGHT0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 303 OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES
WIDTH ACROSS FLATS0.156 INCHES MINIMUM AND 0.158 INCHES MAXIMUM
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.785 INCHES MINIMUM
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNF


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