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		                             National Stock Number: 5305-01-459-7992
  Federal Supply Class: 5305
  National Item Identification Number: 014597992
  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:
 | 259554 ITEM 38 | 43689 | HUNTINGTON INGALLS INC |   
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  Techincal Specification:
 | THREAD SERIES DESIGNATOR | UNC |  | NOMINAL THREAD DIAMETER | 0.250 INCHES |  | THREAD QUANTITY PER INCH | 20 |  | THREAD CLASS | 3A |  | THREAD DIRECTION | RIGHT-HAND |  | THREAD LENGTH | 0.150 INCHES NOMINAL |  | FASTENER LENGTH | 0.220 INCHES MINIMUM AND |   | 0.250 INCHES MAXIMUM |  | MATERIAL | STEEL CORROSION RESISTING OVERALL |  | MATERIAL DOCUMENT AND CLASSIFICATION | FED-STD-66 FED STD SINGLE MATERIAL RESPONSE OVERALL |  | MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH |  | HEAD STYLE | FLAT CHAMFER |  | HEAD DIAMETER | 0.365 INCHES MINIMUM AND |   | 0.375 INCHES MAXIMUM |  | HEAD HEIGHT | 0.244 INCHES MINIMUM AND |   | 0.250 INCHES MAXIMUM |  | INTERNAL DRIVE STYLE | HEXAGON |  | WIDTH ACROSS FLATS | 0.188 INCHES NOMINAL |  | SPECIAL FEATURES | SELF-LOCKING |   
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