6630-01-254-4188 VISCOSIMETER,CUP TYPE Index 5305-01-254-4190 SCREW ASSEMBLY,PANEL

National Stock Number:
5305-01-254-4189

Federal Supply Class:
5305

National Item Identification Number:
012544189

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:
400-5530886 ITEM 4553711NAVAL SEA SYSTEMS COMMAND
6750-607 ITEM 4543689HUNTINGTON INGALLS INC
976205543689HUNTINGTON INGALLS INC


Techincal Specification:
THREAD SERIES DESIGNATORUNC
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.120 INCHES MINIMUM AND
1.710 INCHES MAXIMUM
FASTENER LENGTH1.750 INCHES NOMINAL
MATERIALNICKEL ALLOY 400 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER0.457 INCHES MINIMUM AND
0.469 INCHES MAXIMUM
HEAD HEIGHT0.306 INCHES MINIMUM AND
0.312 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.250 INCHES NOMINAL


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