5305-01-258-8500 SCREW ASSEMBLY,PANEL Index 5310-01-258-8502 WASHER,FLAT

National Stock Number:
5310-01-258-8501

Federal Supply Class:
5310

National Item Identification Number:
012588501

Description:
NUT,PLAIN,RECTANGULAR

Detail:
A NUT, FLAT ON TOP AND BOTTOM, HAVING FOUR FLAT SIDES OF WHICH TWO PARALLEL SIDES ARE SHORTER THAN THE OTHER TWO. FOR ITEMS HAVING A THICKNESS (OR HEIGHT) EXCEEDING TWO TIMES THE WIDTH, USE POST, ELECTRICAL-MECHANICAL EQUIPMENT. (WHEN HEIGHT OR THICKNESS AND/OR WIDTH IS DESIGNATED AS A TOLERANCE DIMENSION, THE MAXIMUM DIMENSION WILL BE USED TO DETERMINE COMPLIANCE.)


Manufacturer Information:
4330294882JERGENS INC
ST33D5704236LOCKHEED MARTIN CORP
ST33D57-104236LOCKHEED MARTIN CORP


Techincal Specification:
HARDNESS RATING27.3 ROCKWELL C NOMINAL
NUT HEIGHT0.500 INCHES NOMINAL
NUT WIDTH0.688 INCHES NOMINAL
NUT LENGTH0.875 INCHES NOMINAL
MATERIALSTEEL COMP 4150 OVERALL
NOMINAL THREAD SIZE0.375 INCHES
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH16
SURFACE TREATMENTOXIDE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2B


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