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		                        | National Stock Number:
 5305-01-331-1580
 
 Federal Supply Class:
 5305
 
 National Item Identification Number:
 013311580
 
 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.
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 Manufacturer Information:
 
 | 5818948 | 53711 | NAVAL SEA SYSTEMS COMMAND | 
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 Techincal Specification:
 
 | THREAD SERIES DESIGNATOR | UNC |  | THREAD QUANTITY PER INCH | 32 |  | THREAD CLASS | 2A |  | THREAD DIRECTION | RIGHT-HAND |  | THREAD LENGTH | 1.000 INCHES NOMINAL |  | FASTENER LENGTH | 4.125 INCHES NOMINAL |  | MATERIAL | STEEL OVERALL |  | HEAD DIAMETER | 0.164 INCHES NOMINAL |  | THE MANUFACTURERS DATA |  |  | MANUFACTURERS CODE | 53711 |  | DESIGN CONTROL REFERENCE | 5818948 | 
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