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		                        | National Stock Number:
 5305-01-025-4832
 
 Federal Supply Class:
 5305
 
 National Item Identification Number:
 010254832
 
 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:
 
 | FF-S-86 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |  | MS16997-169 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | 
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 Techincal Specification:
 
 | MINIMUM YIELD STRENGTH | 150000 POUNDS PER SQUARE INCH |  | HEAD STYLE | FLAT CHAMFER |  | HEAD DIAMETER | 0.921 INCHES MINIMUM AND |  |  | 0.938 INCHES MAXIMUM |  | HEAD HEIGHT | 0.616 INCHES MINIMUM AND |  |  | 0.625 INCHES MAXIMUM |  | INTERNAL DRIVE STYLE | HEXAGON |  | WIDTH ACROSS FLATS | 0.500 INCHES MINIMUM AND |  |  | 0.505 INCHES MAXIMUM |  | NONDEFINITIVE SPEC/STD DATA | 6 TYPE |  | SPEC/STD CONTROLLING DATA |  |  | MANUFACTURERS CODE | 81348 |  | NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | FF-S-86 |  | MANUFACTURERS CODE | 96906 |  | THREAD SERIES DESIGNATOR | UNC |  | NOMINAL THREAD DIAMETER | 0.625 INCHES |  | THREAD QUANTITY PER INCH | 11 |  | THREAD CLASS | 3A |  | THREAD DIRECTION | RIGHT-HAND |  | THREAD LENGTH | 1.008 INCHES MINIMUM AND |  |  | 2.250 INCHES MAXIMUM |  | FASTENER LENGTH | 1.190 INCHES MINIMUM AND |  |  | 2.250 INCHES MAXIMUM |  | MATERIAL | STEEL OVERALL |  | SURFACE TREATMENT | CADMIUM AND |  |  | CHROMATE OVERALL |  | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |  | HARDNESS RATING | 38.0 ROCKWELL C MINIMUM AND |  |  | 45.0 ROCKWELL C MAXIMUM OVERALL |  | MINIMUM TENSILE STRENGTH | 170000 POUNDS PER SQUARE INCH |  | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS16997-169 | 
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