4820-01-462-3158 VALVE,RELIEF,PRESSURE AND TEMPER Index 6520-01-462-3160 TRANSFORMER

National Stock Number:
5305-01-462-3159

Federal Supply Class:
5305

National Item Identification Number:
014623159

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:
803-1401891 PC380064NAVAL SHIP SYSTEMS COMMAND
803-1401892 PC380064NAVAL SHIP SYSTEMS COMMAND
803-1623058 PC 3280064NAVAL SHIP SYSTEMS COMMAND
803-1623943 PC 5780064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
FASTENER LENGTH0.970 INCHES MINIMUM AND 1.020 INCHES MAXIMUM
HEAD HEIGHT0.378 INCHES MINIMUM AND 0.403 INCHES MAXIMUM
HEAD STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONASTMF593 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 316 OVERALL
NOMINAL THREAD DIAMETER0.625 INCHES
SPECIAL FEATURESSELF-LOCKING
WIDTH BETWEEN FLATS0.922 INCHES MINIMUM AND 0.938 INCHES MAXIMUM
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD LENGTH0.861 INCHES MINIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH18


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