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		                        | National Stock Number:
 5305-01-352-2073
 
 Federal Supply Class:
 5305
 
 National Item Identification Number:
 013522073
 
 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:
 
 | 0.31218UNC2A1.500TY2G574SEB | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |  | MIL-DTL-1222 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |  | SF11045 ITEM 22 | 59180 | CIRCOR PUMPS NORTH AMERICA LLC |  | MIL-S-1222 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | 
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 Techincal Specification:
 
 | FASTENER LENGTH | 1.500 INCHES NOMINAL |  | HEAD DIAMETER | 0.457 INCHES MINIMUM AND 0.469 INCHES MAXIMUM |  | HEAD HEIGHT | 0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |  | HEAD STYLE | FLAT CHAMFER |  | INTERNAL DRIVE STYLE | HEXAGON |  | LOCKING FEATURE | PATCH THREADS OR PELLET THREADS OR STRIP THREADS |  | MATERIAL DOCUMENT AND CLASSIFICATION | ASTMA574 ASSN STD SINGLE MATERIAL RESPONSE FASTENER |  | MATERIAL | PLASTIC POLYAMIDE LOCKING FEATURE |  | MATERIAL | STEEL UNS K03104 FASTENER |  | PROPRIETARY CHARACTERISTICS | PACS |  | NOMINAL THREAD DIAMETER | 0.312 INCHES |  | WIDTH ACROSS FLATS | 0.250 INCHES NOMINAL |  | THREAD CLASS | 2A |  | THREAD DIRECTION | RIGHT-HAND |  | THREAD LENGTH | 1.389 INCHES MINIMUM AND 1.500 INCHES MAXIMUM |  | THREAD QUANTITY PER INCH | 18 |  | THREAD SERIES DESIGNATOR | UNC | 
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