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		                             National Stock Number: 5305-01-490-6656
  Federal Supply Class: 5305
  National Item Identification Number: 014906656
  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:
 | 0.438-14UNC-2AX1.625LG NICUAL | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |  | 501-7066669-34 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH |  | 501-7066669=34 | 53711 | NAVAL SEA SYSTEMS COMMAND |  | FF-S-86 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |  | H525-7707-34 | 90699 | UNIMASCO INC |  | 566-7067171-23 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH |  | M1222SN7C226NCLN | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |  | ME-400-370 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH |   
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  Techincal Specification:
 | FASTENER LENGTH | 1.625 INCHES NOMINAL |  | HEAD DIAMETER | 0.642 INCHES MINIMUM AND 0.656 INCHES MAXIMUM |  | HEAD HEIGHT | 0.430 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |  | HEAD STYLE | FLAT CHAMFER |  | INTERNAL DRIVE STYLE | HEXAGON |  | LOCKING FEATURE | PATCH THREADS OR STRIP THREADS OR PELLET THREADS |  | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |  | MATERIAL | NICKEL ALLOY K-500 OVERALL |  | PROPRIETARY CHARACTERISTICS | PACS |  | NOMINAL THREAD DIAMETER | 0.438 INCHES |  | WIDTH ACROSS FLATS | 0.375 INCHES NOMINAL |  | THREAD CLASS | 2A |  | THREAD DIRECTION | RIGHT-HAND |  | THREAD LENGTH | 1.625 INCHES NOMINAL |  | THREAD QUANTITY PER INCH | 14 |  | THREAD SERIES DESIGNATOR | UNC |   
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