5305-00-210-0389 SCREW,CAP,SOCKET HEAD Index 5305-00-210-0391 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-00-210-0390

Federal Supply Class:
5305

National Item Identification Number:
002100390

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:
650269PC1110001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER


Techincal Specification:
THREAD SERIES DESIGNATORUNC
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.625 INCHES MINIMUM
FASTENER LENGTH1.375 INCHES NOMINAL
MATERIALSTEEL COMP 4135 OR
STEEL COMP 4137 OR
STEEL COMP 8640 OVERALL
SURFACE TREATMENTZINC OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-325,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND
43.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM YIELD STRENGTH140000 POUNDS PER SQUARE INCH
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER0.429 INCHES MINIMUM AND
0.437 INCHES MAXIMUM
HEAD HEIGHT0.306 INCHES MINIMUM AND
0.312 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.218 INCHES MINIMUM AND
0.220 INCHES MAXIMUM
HOLE CONFIGURATION STYLEROUND INTERNAL HEXAGON
HOLE TYPEDRILLED
HOLE QUANTITY4
HOLE DIAMETER0.062 INCHES NOMINAL


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