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National Stock Number: 5310-00-199-3127
Federal Supply Class: 5310
National Item Identification Number: 001993127
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.)
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Manufacturer Information:
FF-N-836E TYPE I STYLE 1 GRADE A | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC | FFN836 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
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Techincal Specification:
BEARING SURFACE TYPE | FLAT | HARDNESS RATING | 69.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM | MATERIAL | STEEL OVERALL | NOMINAL THREAD SIZE | 0.500 INCHES | NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND 1 STYLE AND A GRADE | NUT HEIGHT | 0.418 INCHES MINIMUM AND 0.458 INCHES MAXIMUM | NUT STYLE | SQUARE | WIDTH ACROSS FLATS | 0.788 INCHES MINIMUM AND 0.812 INCHES MAXIMUM | THREAD CLASS | 2B | THREAD DIRECTION | RIGHT-HAND | THREAD QUANTITY PER INCH | 13 | THREAD SERIES | UNC |
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