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		                             National Stock Number: 5305-01-163-8239
  Federal Supply Class: 5305
  National Item Identification Number: 011638239
  Description: SCREW,MACHINE
  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:
 | FF-S-92 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |  | NAS662C2LPR4 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |   
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  Techincal Specification:
 | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |  | FASTENER LENGTH | 0.250 INCHES NOMINAL |  | HEAD DIAMETER | 0.156 INCHES MINIMUM AND 0.172 INCHES MAXIMUM |  | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |  | LOCKING FEATURE | PATCH |  | MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH |  | NOMINAL THREAD DIAMETER | 0.086 INCHES |  | SPECIAL FEATURES | MATERIAL: STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 302 OR STEEL COMP 303 OVERALL; SURFACE TREATMENT: PASSIVATE OVERALL; MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-763 FED SPEC 2ND MATERIAL MIL-S-7720 MIL SPEC 3RD MATERIAL RESPONSE OR ASTM A582 ASSN STD 4TH MATERIAL RESPONSE OVERALL; HEAD STYLE: FLAT COUNTERSUNK; SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |  | SPECIFICATION/STANDARD DATA | 80205-NAS662 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |  | THREAD CLASS | 2A |  | THREAD DIRECTION | RIGHT-HAND |  | THREAD LENGTH | 0.190 INCHES MINIMUM AND 0.221 INCHES MAXIMUM |  | THREAD QUANTITY PER INCH | 56 |  | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |   
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