5310-01-208-7978 NUT,PLAIN,HEXAGON Index 5310-01-208-7980 NUT,SHEET SPRING

National Stock Number:
5310-01-208-7979

Federal Supply Class:
5310

National Item Identification Number:
012087979

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:
DIN555M121FH08LEHIGH ARMSTRONG INC
DIN555M12D8286DIN DEUTSCHES INSTITUT FUER NORMUNGEV


Techincal Specification:
BEARING SURFACE TYPECHAMFERED
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE12.0 MILLIMETERS
NUT STYLEHEXAGON
NUT HEIGHT9.25 MILLIMETERS MINIMUM AND 10.75 MILLIMETERS MAXIMUM
WIDTH ACROSS FLATS18.48 MILLIMETERS MINIMUM AND 19.00 MILLIMETERS MAXIMUM
THREAD DIRECTIONRIGHT-HAND
THREAD PITCH IN MILLIMETERS1.75
THREAD TOLERANCE CLASS7H INTERNAL
THREAD SERIESISO M


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