4820-01-445-6329 VALVE,GATE Index 1680-01-445-6331 SAFETY WALK,NON SLP

National Stock Number:
5305-01-445-6330

Federal Supply Class:
5305

National Item Identification Number:
014456330

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:
21802734196169ELECTRIC BOAT CORPORATION
26M54-3001 ITEM 2196169ELECTRIC BOAT CORPORATION
60-02-240596169ELECTRIC BOAT CORPORATION
60-02-2405A96169ELECTRIC BOAT CORPORATION


Techincal Specification:
FASTENER LENGTH0.625 INCHES NOMINAL
HEAD STYLEHEXAGON
MATERIALNICKEL ALLOY 400 OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
SPECIAL FEATURESSELF-LOCKING
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)


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