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		                             National Stock Number: 5305-01-164-1122
  Federal Supply Class: 5305
  National Item Identification Number: 011641122
  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:
 | MS21091-08016 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |   
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  Techincal Specification:
 | THREAD SERIES DESIGNATOR | UNC |  | NOMINAL THREAD DIAMETER | 0.164 INCHES |  | THREAD QUANTITY PER INCH | 32 |  | THREAD CLASS | 3A |  | THREAD DIRECTION | RIGHT-HAND |  | THREAD LENGTH | 0.412 INCHES MINIMUM AND |   | 0.478 INCHES MAXIMUM |  | FASTENER LENGTH | 1.422 INCHES MINIMUM AND |   | 1.468 INCHES MAXIMUM |  | MATERIAL | STEEL COMP 4037 OR |   | STEEL COMP 8630 OVERALL |  | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6300 ASSN STD 1ST MATERIAL RESPONSE OR |   | MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |  | SURFACE TREATMENT | CADMIUM AND |   | CHROMATE OVERALL |  | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2 CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |  | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND |   | 32.0 ROCKWELL C MAXIMUM OVERALL |  | MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH |  | HEAD STYLE | FLAT COUNTERSUNK |  | HEAD DIAMETER | 0.283 INCHES MINIMUM AND |   | 0.332 INCHES MAXIMUM |  | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND |   | 101.0 DEGREES MAXIMUM |  | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |  | LOCKING FEATURE | PATCH OR |   | PELLET OR |   | STRIP THREADS |  | SPEC/STD CONTROLLING DATA |  |  | MANUFACTURERS CODE | 96906 |  | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS21091-08016 |   
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