5340-01-391-2798 CAP,PROTECTIVE,DUST AND MOISTURE Index 5330-01-391-2800 SEAL,NONMETALLIC SPECIAL SHAPED

National Stock Number:
5310-01-391-2799

Federal Supply Class:
5310

National Item Identification Number:
013912799

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:
231421-272447DANA COMMERCIAL VEHICLE MANUFACTURING, LLC
500371-272447DANA COMMERCIAL VEHICLE MANUFACTURING, LLC


Techincal Specification:
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
COUNTERSINK ANGLE105.0 DEGREES NOMINAL NUT
HARDNESS RATING85.0 ROCKWELL C NOMINAL
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE0.312 INCHES
NUT HEIGHT0.258 INCHES MINIMUM AND 0.273 INCHES MAXIMUM
NUT STYLEHEXAGON
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH24
THREAD SERIESUNF
WIDTH ACROSS FLATS0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM


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