5305-01-389-2545 SCREW,MACHINE Index 5330-01-389-2547 SEAL,NONMETALLIC STRIP

National Stock Number:
5305-01-389-2546

Federal Supply Class:
5305

National Item Identification Number:
013892546

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:
12387270-1219207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM


Techincal Specification:
FASTENER LENGTH0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
HEAD DIAMETER0.176 INCHES MINIMUM AND 0.183 INCHES MAXIMUM
HEAD HEIGHT0.108 INCHES MINIMUM AND 0.112 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH155000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.112 INCHES
WIDTH ACROSS FLATS0.093 INCHES MINIMUM AND 0.095 INCHES MAXIMUM
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.544 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
THREAD QUANTITY PER INCH40
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)


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