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.
938.08.71.212S4080PILATUS AIRCRAFT LTD
9380871212S4080PILATUS AIRCRAFT LTD
F12NE4753-12672962HARVARD INDUSTRIES INC
F12NEC-121672962HARVARD INDUSTRIES INC
MS17825-1296906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


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


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