5310-01-568-6757 WASHER,FLAT Index 5310-01-568-6951 WASHER,FLAT

National Stock Number:
5310-01-568-6872

Federal Supply Class:
5310

National Item Identification Number:
015686872

Description:
NUT,SELF-LOCKING,EXTENDED WASHER

Detail:
A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery. An integral feature is incorporated for locking on the threads of a mating member.


Manufacturer Information:
MS21042-4380205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
MS21042-4396906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
HARDNESS RATING49.0 ROCKWELL C MAXIMUM
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
LUBRICATIONSOLUBLE LUBRICANT
OVERALL HEIGHT0.204 INCHES MINIMUM AND 0.219 INCHES MAXIMUM
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE0.250 INCHES
NUT STYLEHEXAGON
PART NAME ASSIGNED BY CONTROLLING AGENCYNUT, SLEF-LOCKING, 450*F, REDUCEDHEXAGON, REDUCED HEIGHT, RING BASE, NON-CORROSION RESISTANT STEEL
WASHER OUTSIDE DIAMETER0.420 INCHES MAXIMUM
WASHER THICKNESS0.019 INCHES MINIMUM
WIDTH ACROSS FLATS0.304 INCHES MINIMUM AND 0.316 INCHES MAXIMUM
SURFACE TREATMENTCADMIUM OVERALL
TEMP RATING450.0 FAHRENHEIT NOMINAL
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH28
THREAD SERIESUNJF


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