5305-01-227-2777 SCREW,CAP,SOCKET HEAD Index 5305-01-227-2779 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-227-2778

Federal Supply Class:
5305

National Item Identification Number:
012272778

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:
917AS201130003NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER


Techincal Specification:
FASTENER LENGTH0.350 INCHES MINIMUM AND 0.380 INCHES MAXIMUM
HARDNESS RATING35.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.063 INCHES MINIMUM AND 0.073 INCHES MAXIMUM
HEAD STYLEHEXAGON
LOCKING FEATUREPATCH OVERALL
MATERIALSTEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER0.138 INCHES
WIDTH BETWEEN FLATS0.247 INCHES NOMINAL
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.210 INCHES MINIMUM AND 0.240 INCHES MAXIMUM
THREAD CLASS2A
THREAD SERIES DESIGNATORUNC
THREAD QUANTITY PER INCH32


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