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		                        | National Stock Number:
 5305-01-689-2610
 
 Federal Supply Class:
 5305
 
 National Item Identification Number:
 016892610
 
 Description:
 SCREW,SHOULDER
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 Manufacturer Information:
 
 | 12705-12C-12U | 1C5D9 | SPS TECHNOLOGIES INC UNBRAKO DIV |  | 31000-196 | 30003 | NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY  NOT MATERIAL/PARTS SUPPLIER | 
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 Techincal Specification:
 
 | THREAD SERIES DESIGNATOR | UNRC |  | NOMINAL THREAD DIAMETER | 0.625 INCHES |  | THREAD QUANTITY PER INCH | 11 |  | THREAD CLASS | 3A |  | THREAD DIRECTION | RIGHT-HAND |  | THREAD LENGTH | 0.875 INCHES NOMINAL |  | FASTENER LENGTH | 1.625 INCHES NOMINAL |  | MATERIAL | STEEL OVERALL |  | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A574 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ALL MATERIAL RESPONSES OR |  |  | ANSI/ASME B18.3 ASSN STD ALL MATERIAL RESPONSES OVERALL |  | SURFACE TREATMENT | ZINC OVERALL |  | COLOR | SILVER OVERALL |  | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND |  |  | 43.0 ROCKWELL C MAXIMUM OVERALL |  | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |  | HEAD STYLE | KNURLED NO. 5 |  | HEAD DIAMETER | 0.977 INCHES MINIMUM AND |  |  | 1.000 INCHES MAXIMUM |  | HEAD HEIGHT | 0.490 INCHES MINIMUM AND |  |  | 0.500 INCHES MAXIMUM |  | INTERNAL DRIVE STYLE | HEXAGON |  | WIDTH ACROSS FLATS | 0.375 INCHES NOMINAL |  | PART NAME ASSIGNED BY CONTROLLING AGENCY | SHOULDER BOLT | 
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