Part Number: 0.312-18UNC-3B NICU

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CONDITION:
NS
MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M81349
FITZ AEROSPACE, LLC019L2
HARVARD INDUSTRIES INC72962
FITZ AEROSPACE, LLC019L2
HARVARD INDUSTRIES INC72962
HARVARD INDUSTRIES INC72962
GREER STOP NUT INC.27687
CLARK EQUIPMENT COMPANY33968
NAVAL SEA SYSTEMS COMMAND53711
NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE80205
MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M96906
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
NUT STYLEHEXAGON
NUT HEIGHT0.271 INCHES MINIMUM AND 0.360 INCHES MAXIMUM
WIDTH ACROSS FLATS0.492 INCHES MINIMUM AND 0.504 INCHES MAXIMUM
TEMP RATING250.0 DEG FAHRENHEIT NOMINAL
THREAD SERIESUNC
THREAD QUANTITY PER INCH18
NOMINAL THREAD SIZE0.312 INCHES
COUNTERSINK ANGLE88.0 DEGREES NOMINAL NUT
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
BEARING SURFACE FINISH125.0 MICROINCHES
MATERIALNICKEL ALLOY 400 NUT OR NICKEL ALLOY R-405 NUT
MATERIALPLASTIC POLYHEXAMETHYLENE AMIDE LOCKING INSERT
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D4066,CPMP A,TYPE 1 ASSN STD SINGLE MATERIAL RESPONSE LOCKING INSERT
TERMINAL TYPE AND QUANTITY2 UNINSULATED WIRE LEAD
A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes NUT (1), SELF-LOCKING, CAP.