4820-01-506-5261 GEAR OPERATOR,VALVE Index 5305-01-506-5263 SCREW,CAP,HEXAGON HEAD

National Stock Number:
5305-01-506-5262

Federal Supply Class:
5305

National Item Identification Number:
015065262

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:
639307053711NAVAL SEA SYSTEMS COMMAND
6393070-1731442NORTHROP GRUMMAN SYSTEMS CORPORATION
6393070-1753711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
FASTENER LENGTH2.120 INCHES MINIMUM AND 2.140 INCHES MAXIMUM
HEAD HEIGHT0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM
HEAD STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS5664 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALNICKEL ALLOY 718 OVERALL
PROPRIETARY CHARACTERISTICSPACS
NOMINAL THREAD DIAMETER0.375 INCHES
SPECIAL FEATURESDATA EXPORT RESTRICTED; FINISH COAT WITH ALUMIZITE Z OR ZD(TIODIZE)
WIDTH BETWEEN FLATS0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.120 INCHES MINIMUM AND 1.140 INCHES MAXIMUM
THREAD QUANTITY PER INCH16
THREAD SERIES DESIGNATORUNRC


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