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		                        | National Stock Number:
 5305-00-938-2020
 
 Federal Supply Class:
 5305
 
 National Item Identification Number:
 009382020
 
 Description:
 SCREW,MACHINE
 
 Detail:
 An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below No. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; and SCREW, ASSEMBLED WASHER. See also, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; and SCREW, CAP SOCKET HEAD.
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 Manufacturer Information:
 
 | FF-S-92 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |  | NAS662-2R10 | 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 | 0.625 INCHES NOMINAL |  | HEAD DIAMETER | 0.156 INCHES MINIMUM AND 0.172 INCHES MAXIMUM |  | HEAD STYLE | FLAT COUNTERSUNK |  | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |  | MINIMUM TENSILE STRENGTH | 55000 POUNDS PER SQUARE INCH |  | NOMINAL THREAD DIAMETER | 0.086 INCHES |  | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A575 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A576 ASSN STD SINGLE MATERIAL RESPONSE |  | SCREW MATERIAL | STEEL COMP 1010 |  | SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE |  | SCREW SURFACE TREATMENT | CADMIUM AND CHROMATE |  | THREAD CLASS | 2A |  | THREAD DIRECTION | RIGHT-HAND |  | THREAD LENGTH | 0.589 INCHES MINIMUM AND 0.625 INCHES MAXIMUM |  | THREAD QUANTITY PER INCH | 56 |  | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) | 
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