5305-01-343-7238 SCREW,CAP,SOCKET HEAD Index 5306-01-343-7240 BOLT,CLOSE TOLERANCE

National Stock Number:
5305-01-343-7239

Federal Supply Class:
5305

National Item Identification Number:
013437239

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:
3176207-A-26410001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER


Techincal Specification:
THREAD SERIES DESIGNATORUNC
NOMINAL THREAD DIAMETER0.500 INCHES
THREAD QUANTITY PER INCH13
THREAD CLASS3
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.596 INCHES MINIMUM AND
1.750 INCHES MAXIMUM
FASTENER LENGTH1.750 INCHES NOMINAL
MATERIALSTEEL OVERALL
SURFACE TREATMENTZINC AND
CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633 TY 2 CL FE/ZN 5 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING80.0 ROCKWELL C NOMINAL OVERALL
MINIMUM TENSILE STRENGTH80000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH30000 POUNDS PER SQUARE INCH
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER0.735 INCHES MINIMUM AND
0.750 INCHES MAXIMUM
HEAD HEIGHT0.492 INCHES MINIMUM AND
0.500 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.375 INCHES NOMINAL


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