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		                             National Stock Number: 5305-01-486-1142
  Federal Supply Class: 5305
  National Item Identification Number: 014861142
  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:
 | 60-23-9957 | 96169 | ELECTRIC BOAT CORPORATION |  | 721-7068598-51 | 53711 | NAVAL SEA SYSTEMS COMMAND |  | H861-2501-51 | 96169 | ELECTRIC BOAT CORPORATION |   
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  Techincal Specification:
 | FASTENER LENGTH | 0.250 INCHES NOMINAL |  | HEAD STYLE | OVAL |  | INTERNAL DRIVE STYLE | SLOT |  | NOMINAL THREAD DIAMETER | 0.164 INCHES |  | SCREW MATERIAL | NICKEL ALLOY 400 |  | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | Q-N-281, CLASS A FED SPEC 13TH MATERIAL RESPONSE |  | SPECIAL FEATURES | ITEM CONTAINS SELF LOCKING FEATURE |  | THREAD CLASS | 2A |  | THREAD DIRECTION | RIGHT-HAND |  | THREAD QUANTITY PER INCH | 32 |  | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |   
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