5305-01-127-8474 SCREW,CAP,SOCKET HEAD Index 5305-01-127-8476 SETSCREW

National Stock Number:
5305-01-127-8475

Federal Supply Class:
5305

National Item Identification Number:
011278475

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:
520-4674720 ITEM 1880064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
THREAD SERIES DESIGNATORUNC
NOMINAL THREAD DIAMETER1.500 INCHES
THREAD QUANTITY PER INCH6
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH4.028 INCHES MINIMUM AND
4.500 INCHES MAXIMUM
FASTENER LENGTH4.360 INCHES MINIMUM AND
4.500 INCHES MAXIMUM
MATERIALSTEEL OVERALL
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND
45.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH70000 POUNDS PER SQUARE INCH
HEAD STYLEFLAT COUNTERSUNK
HEAD DIAMETER2.791 INCHES MINIMUM AND
2.938 INCHES MAXIMUM
COUNTERSINK ANGLE80.0 DEGREES MINIMUM AND
84.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS1.000 INCHES NOMINAL


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