Part Number: F12NTEC-918

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CONDITION:
NS
GREER STOP NUT INC.27687
FAIRCHILD FASTENERS UK LTDK1678
KAYNAR MICRODOT AEROSPACEK6405
MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M96906
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN OR PREVAILING TORQUE WITH NONMETALLIC INSERT
NUT STYLECASTELLATED, HEXAGON
NUT HEIGHT0.298 INCHES MINIMUM AND 0.328 INCHES MAXIMUM
WIDTH ACROSS FLATS0.865 INCHES MINIMUM AND 0.877 INCHES MAXIMUM
TEMP RATING250.0 DEG FAHRENHEIT NOMINAL
THREAD SERIESUNJF
THREAD QUANTITY PER INCH18
NOMINAL THREAD SIZE0.562 INCHES
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
BEARING SURFACE FINISH125.0 MICROINCHES
MATERIALSTEEL NUT
SURFACE TREATMENTCADMIUM OVERALL EXCEPT INSERT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT
TEST DATA DOCUMENT81349-MILR55182 SPECIFICATION
A NUT HAVING 6 FLAT SIDES, FLAT ON THE BOTTOM AND HAVING A SLOTTED CYLINDRICAL OR DOME SHAPED UPPER PORTION. AN INTEGRAL FEATURE IS INCORPORATED FOR LOCKING ON THE THREADS OF A MATING MEMBER. THE SLOTS WHEN USED IN CONJUNCTION WITH A SOLID OR SPLIT (COTTER) PIN, ACT AS AN EXTRA "FAIL SAFE" FEATURE IN CRITICAL APPLICATIONS. EXCLUDES NUT (1), SELF-LOCKING, SLOTTED, HEXAGON.