7690-01-546-3049 MARKER,IDENTIFICATION Index 4140-01-546-3051 IMPELLER,FAN,AXIAL

National Stock Number:
5310-01-546-3050

Federal Supply Class:
5310

National Item Identification Number:
015463050

Description:
NUT,PLAIN,HEXAGON

Detail:
A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see LOCKNUT, ELECTRICAL CONDUIT. See also LOCKNUT, TUBE FITTING. 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:
816608753711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
BEARING SURFACE TYPECHAMFERED
MATERIALALUMINUM ALLOY 7075 OVERALL
NOMINAL THREAD SIZE0.750 INCHES
NUT HEIGHT0.437 INCHES NOMINAL
NUT STYLEHEXAGON
SPECIAL FEATURESNUT HAS SHOULDER HEIGHT OF 0.125 INCHES. THE CHAMFER OF THIS NUT IS .020 INCHES X45 DEGREES TO ELIMINATE A LOCAL STRESS CONCENTRATION AT THE TIP OF THE NUT. THIS NUT IS DYED BRIGHT BLUE TO MAKE IT EASILY DISTINGUISHABLE.
WIDTH ACROSS FLATS1.062 INCHES NOMINAL
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH20
THREAD SERIESUNEF


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