5310-01-212-9718 NUT,PLAIN,HEXAGON Index 5310-01-212-9720 WASHER,FLAT

National Stock Number:
5310-01-212-9719

Federal Supply Class:
5310

National Item Identification Number:
012129719

Description:
NUT,SELF-LOCKING,HEXAGON

Detail:
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.


Manufacturer Information:
000.250-20UNC-3B, LEVEL 103950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
688-1864 APPX 296169ELECTRIC BOAT CORPORATION


Techincal Specification:
CRITICALITY CODE JUSTIFICATIONZZZY
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD-66 FED STD SINGLE MATERIAL RESPONSE OVERALL EXCEPT INSERT
MATERIALSTEEL COMP 1137 OVERALL EXCEPT INSERT
NOMINAL THREAD SIZE0.250 INCHES
NUT HEIGHT0.240 INCHES MINIMUM AND 0.360 INCHES MAXIMUM
NUT STYLEHEXAGON
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
SPECIAL FEATURESFOR ADDITIONAL DESCRIPTION AND INFORMATION CONCERNING THIS ITEM,REFER TO SPCCINST 4440.376 SERIES,CHAPTER 9
WIDTH ACROSS FLATS0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT
SURFACE TREATMENTCADMIUM OVERALL EXCEPT INSERT
TEMP RATING250.0 FAHRENHEIT NOMINAL
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH20
THREAD SERIESUNC


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