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		                             National Stock Number: 5305-01-408-8610
  Federal Supply Class: 5305
  National Item Identification Number: 014088610
  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:
 | 211064543 | 53711 | NAVAL SEA SYSTEMS COMMAND |  | 585-6406620-10 | 53711 | NAVAL SEA SYSTEMS COMMAND |  | 585-6406777-23 | 53711 | NAVAL SEA SYSTEMS COMMAND |  | 6406620 FIND 10 | 53711 | NAVAL SEA SYSTEMS COMMAND |   
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  Techincal Specification:
 | THREAD SERIES DESIGNATOR | UNRF |  | NOMINAL THREAD DIAMETER | 0.250 INCHES |  | THREAD QUANTITY PER INCH | 28 |  | FASTENER LENGTH | 0.625 INCHES NOMINAL |  | MATERIAL | NICKEL OVERALL |  | HEAD STYLE | FLAT COUNTERSUNK |  | COUNTERSINK ANGLE | 82.0 DEGREES NOMINAL |   
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