5998-00-438-5500 CIRCUIT CARD ASSEMBLY Index 5330-00-438-5518 GASKET

National Stock Number:
5310-00-438-5501

Federal Supply Class:
5310

National Item Identification Number:
004385501

Description:
NUT,SELF-LOCKING,EXTENDED WASHER

Detail:
A nut having 12 drive points, 24 sides, and an integral washer which extends beyond the points or periphery. An integral feature is incorporated for locking on the threads of a mating member.


Manufacturer Information:
LH7559-472962HARVARD INDUSTRIES INC
PS1208-2970255EMERSON ELECTRIC CO ALCO CONTROLS DIV


Techincal Specification:
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
LUBRICATIONDRY FILM LUBRICANT
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE0.250 INCHES
NUT STYLEDOUBLE HEXAGON
OVERALL HEIGHT0.219 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
TEMP RATING450.0 FAHRENHEIT NOMINAL
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH28
THREAD SERIESUNJF
WASHER OUTSIDE DIAMETER0.420 INCHES MAXIMUM
WASHER THICKNESS0.040 INCHES NOMINAL
WIDTH ACROSS FLATS0.281 INCHES NOMINAL


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