5310-01-121-1697 NUT,PLAIN,ROUND Index 5310-01-121-1699 WASHER,FLAT

National Stock Number:
5310-01-121-1698

Federal Supply Class:
5310

National Item Identification Number:
011211698

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:
5310PL16427669009HINSPEKTORAT WSPARCIA SIL ZBROJNYCH
KF618-817446HUCK INTERNATIONAL, INC
KFN618-806950HOWMET GLOBAL FASTENING SYSTEMS INC
KFN618-815653HOWMET GLOBAL FASTENING SYSTEMS INC
KFN618-817446HUCK INTERNATIONAL, INC
KFN618-827238BRISTOL INDUSTRIES, LLC
KFN618-880539SPS TECHNOLOGIES, LLC


Techincal Specification:
THREAD SERIESUNJF
NOMINAL THREAD SIZE0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
MATERIALALUMINUM ALLOY 7075 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/9,TEMPER T73 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTANODIZE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NUT STYLEHEXAGON
WASHER OUTSIDE DIAMETER0.418 INCHES MINIMUM AND
0.422 INCHES MAXIMUM
OVERALL HEIGHT0.340 INCHES MAXIMUM
WIDTH ACROSS FLATS0.305 INCHES MINIMUM AND
0.313 INCHES MAXIMUM
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
NUT COUNTERBORE DEPTH0.107 INCHES MINIMUM AND
0.117 INCHES MAXIMUM NUT
COUNTERBORE DIAMETER0.284 INCHES MINIMUM AND
0.288 INCHES MAXIMUM NUT
LUBRICATIONSOLUBLE LUBRICANT


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