5305-00-078-0226 SCREW,MACHINE Index 5305-00-078-0228 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-00-078-0227

Federal Supply Class:
5305

National Item Identification Number:
000780227

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:
LK21090-35326304TORKON FASTENER CORP
MS21090-35396096AMERICAN CARBONIC ENGINEERING CO
MS21090-35396906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.190 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.750 INCHES MINIMUM
FASTENER LENGTH0.750 INCHES NOMINAL
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM AND
CHROMATE OVERALL
HEAD STYLEPAN
HEAD DIAMETER0.357 INCHES MINIMUM AND
0.373 INCHES MAXIMUM
HEAD HEIGHT0.122 INCHES MINIMUM AND
0.133 INCHES MAXIMUM
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
LOCKING FEATUREPATCH OR
PELLET OR
STRIP THREADS
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCEMS21090-353


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