5306-01-434-8141 BOLT,MACHINE Index 5305-01-434-8143 SCREW,CAP,HEXAGON HEAD

National Stock Number:
5305-01-434-8142

Federal Supply Class:
5305

National Item Identification Number:
014348142

Description:
SCREW,CAP,HEXAGON HEAD

Detail:
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.


Manufacturer Information:
122-6602812 PC 3653711NAVAL SEA SYSTEMS COMMAND
122-6602813 PC 3653711NAVAL SEA SYSTEMS COMMAND
122-6602814 PC 3653711NAVAL SEA SYSTEMS COMMAND
803-5001004-X1XX-2053711NAVAL SEA SYSTEMS COMMAND
803-5001004-X3X1-2053711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
FASTENER LENGTH3.500 INCHES NOMINAL
HEAD HEIGHT0.455 INCHES MINIMUM AND 0.483 INCHES MAXIMUM
HEAD STYLEHEXAGON
MATERIALNICKEL ALLOY 400 OVERALL
NOMINAL THREAD DIAMETER0.750 INCHES
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.750 INCHES NOMINAL
THREAD QUANTITY PER INCH10
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
WIDTH BETWEEN FLATS1.100 INCHES MINIMUM AND 1.125 INCHES MAXIMUM


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