4540-01-312-2477 HEATING ELEMENT,ELECTRICAL,NONIMMERSION TYPE Index 5310-01-312-2479 NUT,SELF-LOCKING,HEXAGON

National Stock Number:
5310-01-312-2478

Federal Supply Class:
5310

National Item Identification Number:
013122478

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:
21262911-152AC90NBAE SYSTEMS HAGGLUNDS AKTIEBOLAG
21262911-152S3465BAE SYSTEMS HAGGLUNDS AB
90689-991076M6AMZ ALABAMA INC.
90689-9910BAT5U.S. DEFENSE SERVICES, INC.


Techincal Specification:
BEARING SURFACE TYPEFLAT
NOMINAL THREAD SIZE9.0 MILLIMETERS
NUT STYLEHEXAGON
NUT HEIGHT2.8 MILLIMETERS NOMINAL
THREAD DIRECTIONRIGHT-HAND
THREAD TOLERANCE CLASS6H INTERNAL
THREAD SERIESISO M
WIDTH ACROSS FLATS15.0 MILLIMETERS NOMINAL


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