5305-00-505-2719 SCREW,MACHINE Index 5305-00-505-2722 SCREW,MACHINE

National Stock Number:
5310-00-505-2721

Federal Supply Class:
5310

National Item Identification Number:
005052721

Description:
NUT,SELF-LOCKING,SLOTTED,HEXAGON

Detail:
A NUT HAVING A FLAT BEARING SURFACE AND 6 FLAT SIDES WITH SLOTS IN ITS 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, CASTELLATED, OCTAGON.


Manufacturer Information:
10450715A486GNIMIKKEISTOKESKUS NCB FINLAND
7F12NEC121627678WALTER DANKAS & CO.
F12NE4753-12672962HARVARD INDUSTRIES INC
F12NEC-121672962HARVARD INDUSTRIES INC
938.08.71.212S4080PILATUS AIRCRAFT LTD
9380871212S4080PILATUS AIRCRAFT LTD
MS17825-1296906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
THREAD SERIESUNJF
NOMINAL THREAD SIZE0.750 INCHES
THREAD QUANTITY PER INCH16
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
MATERIALPLASTIC POLYAMIDE LOCKING INSERT
STEEL NUT
SURFACE TREATMENTCADMIUM AND
CARBON OVERALL EXCEPT INSERT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT
NUT STYLESLOTTED, HEXAGON
NUT HEIGHT0.798 INCHES MINIMUM AND
0.828 INCHES MAXIMUM
WIDTH ACROSS FLATS1.052 INCHES MINIMUM AND
1.064 INCHES MAXIMUM
BEARING SURFACE TYPEWASHER FACED
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN OR
PREVAILING TORQUE WITH NONMETALLIC INSERT
TEMP RATING250.0 DEG FAHRENHEIT NOMINAL
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCEMS17825-12


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