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National Stock Number: 5305-01-664-0521
Federal Supply Class: 5305
National Item Identification Number: 016640521
Description: SCREW,MACHINE
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Manufacturer Information:
MS51959-99S316 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM | FASTENER LENGTH | 1.188 INCHES MINIMUM AND 1.250 INCHES MAXIMUM | HEAD DIAMETER | 0.600 INCHES MINIMUM AND 0.635 INCHES MAXIMUM | HEAD STYLE | FLAT COUNTERSUNK | INTERNAL DRIVE STYLE | CROSS RECESS TYPE II | NOMINAL THREAD DIAMETER | 0.3125 INCHES | SCREW MATERIAL | STEEL COMP 316 OR STEEL COMP 316L | SCREW SURFACE TREATMENT | PASSIVATE | THREAD CLASS | 2A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 0.997 INCHES MINIMUM AND 1.059 INCHES MAXIMUM | THREAD QUANTITY PER INCH | 18 | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
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