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		                        | National Stock Number:
 5305-99-441-5316
 
 Federal Supply Class:
 5305
 
 National Item Identification Number:
 994415316
 
 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:
 
 | A217-B20 | K7766 | BRITISH STANDARDS INSTITUTION |  | STD2443/123 | K5294 | GE AVIATION SYSTEMS LIMITED | 
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 Techincal Specification:
 
 | COLOR | BLACK |  | FASTENER LENGTH | 0.625 INCHES NOMINAL |  | HEAD DIAMETER | 0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM |  | HEAD HEIGHT | 0.072 INCHES MINIMUM AND 0.082 INCHES MAXIMUM |  | HEAD STYLE | PAN NO. 2 |  | INTERNAL DRIVE STYLE | SLOT |  | MINIMUM TENSILE STRENGTH | 56000 POUNDS PER SQUARE INCH |  | NOMINAL THREAD DIAMETER | 0.138 INCHES |  | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | K7766-A217 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE |  | SCREW MATERIAL | STEEL |  | SCREW SURFACE TREATMENT | CADMIUM |  | SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | K5294-0732-511 MFR REF SINGLE TREATMENT RESPONSE |  | THREAD CLASS | 2A |  | THREAD DIRECTION | RIGHT-HAND |  | THREAD LENGTH | 0.625 INCHES NOMINAL |  | THREAD QUANTITY PER INCH | 32 |  | THREAD SERIES DESIGNATOR | UNC | 
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