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		                             National Stock Number: 5305-01-040-9890
  Federal Supply Class: 5305
  National Item Identification Number: 010409890
  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:
 | 10087759 | A486G | NIMIKKEISTOKESKUS NCB FINLAND |  | NAS1351-3H6 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |   
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  Techincal Specification:
 | THREAD SERIES DESIGNATOR | UNRF |  | NOMINAL THREAD DIAMETER | 0.190 INCHES |  | THREAD QUANTITY PER INCH | 32 |  | THREAD CLASS | 3A |  | THREAD DIRECTION | RIGHT-HAND |  | THREAD LENGTH | 0.283 INCHES MINIMUM AND |   | 0.375 INCHES MAXIMUM |  | FASTENER LENGTH | 0.345 INCHES MINIMUM AND |   | 0.375 INCHES MAXIMUM |  | MATERIAL | STEEL OVERALL |  | SURFACE TREATMENT | OXIDE OVERALL |  | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |  | COLOR | BLACK OVERALL |  | HARDNESS RATING | 38.0 ROCKWELL C MINIMUM AND |   | 45.0 ROCKWELL C MAXIMUM OVERALL |  | MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH |  | MINIMUM YIELD STRENGTH | 155000 POUNDS PER SQUARE INCH |  | HEAD STYLE | FLAT CHAMFER |  | HEAD DIAMETER | 0.303 INCHES MINIMUM AND |   | 0.312 INCHES MAXIMUM |  | HEAD HEIGHT | 0.185 INCHES MINIMUM AND |   | 0.190 INCHES MAXIMUM |  | INTERNAL DRIVE STYLE | HEXAGON |  | WIDTH ACROSS FLATS | 0.156 INCHES MINIMUM AND |   | 0.159 INCHES MAXIMUM |  | HOLE CONFIGURATION STYLE | ROUND INTERNAL HEXAGON |  | HOLE TYPE | DRILLED |  | HOLE QUANTITY | 6 |  | HOLE DIAMETER | 0.044 INCHES MINIMUM AND |   | 0.050 INCHES MAXIMUM |  | SPECIFICATION/STANDARD DATA | 80205-NAS1351 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |   
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