5310-01-355-0866 NUT,PLAIN,HEXAGON Index 5310-01-355-0868 NUT,PLAIN,HEXAGON

National Stock Number:
5310-01-355-0867

Federal Supply Class:
5310

National Item Identification Number:
013550867

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:
0.31218UNC2BT2G400NSA/BEA81349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
845-65563221 ITEM 3753711NAVAL SEA SYSTEMS COMMAND
845-6556322ITEM3753711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
THREAD SERIESUNC
NOMINAL THREAD SIZE0.312 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
MATERIALNICKEL ALLOY OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE J429 TY II,GR 400 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING80.0 ROCKWELL B MINIMUM
NUT STYLEHEXAGON
NUT HEIGHT0.180 INCHES MINIMUM AND
0.195 INCHES MAXIMUM
WIDTH ACROSS FLATS0.489 INCHES MINIMUM AND
0.500 INCHES MAXIMUM
BEARING SURFACE TYPEFLAT


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