5330-00-208-3040 SEAL Index 5330-00-208-3042 SEAL

National Stock Number:
5310-00-208-3041

Federal Supply Class:
5310

National Item Identification Number:
002083041

Description:
NUT,PLAIN,SQUARE

Detail:
A NUT, FLAT ON TOP AND BOTTOM, HAVING 4 FLAT SIDES. FOR ITEMS HAVING A THICKNESS (OR HEIGHT) EXCEEDING TWO TIMES THE WIDTH ACROSS THE FLATS, USE POST, ELECTRICAL-MECHANICAL EQUIPMENT. (WHEN HEIGHT OR THICKNESS AND/OR WIDTH ACROSS THE FLATS IS DESIGNATED AS A TOLERANCE DIMENSION, THE MAXIMUM DIMENSION WILL BE USED TO DETERMINE COMPLIANCE.)


Manufacturer Information:
FFB571TYPEB2CLASSC81348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
BEARING SURFACE TYPEWASHER FACED
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE0.250 INCHES
NONDEFINITIVE SPEC/STD DATAB-2 TYPE AND C CLASS
NUT HEIGHT0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM
NUT STYLESQUARE
WIDTH ACROSS FLATS0.425 INCHES MINIMUM AND 0.4375 INCHES MAXIMUM
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH20
THREAD SERIESUNC


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