5310-00-545-3649 WASHER,SPLIT Index 4820-00-545-3683 SEAT,VALVE

National Stock Number:
5310-00-545-3651

Federal Supply Class:
5310

National Item Identification Number:
005453651

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:
231421-472447DANA COMMERCIAL VEHICLE MANUFACTURING, LLC
500371-472447DANA COMMERCIAL VEHICLE MANUFACTURING, LLC


Techincal Specification:
THREAD SERIESUNF
NOMINAL THREAD SIZE0.438 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL OVERALL
HARDNESS RATING85.5 ROCKWELL B MINIMUM
NUT STYLEHEXAGON
NUT HEIGHT0.365 INCHES MINIMUM AND
0.385 INCHES MAXIMUM
WIDTH ACROSS FLATS0.675 INCHES MINIMUM AND
0.688 INCHES MAXIMUM
BEARING SURFACE TYPECHAMFERED OR
WASHER FACED
COUNTERSINK ANGLE105.0 DEGREES NOMINAL NUT


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