6340-00-901-8788 ANNUNCIATOR Index 5310-00-901-8792 WASHER,RECESSED

National Stock Number:
5310-00-901-8791

Federal Supply Class:
5310

National Item Identification Number:
009018791

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:
7665955799MINE SAFETY APPLIANCES COMPANY
CU7665955799MINE SAFETY APPLIANCES COMPANY


Techincal Specification:
BEARING SURFACE FINISH125.0 MICROINCHES
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B16-44 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY 360 OVERALL
NOMINAL THREAD SIZE0.750 INCHES
NUT HEIGHT0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM
NUT STYLEHEXAGON
SURFACE TREATMENTNICKEL OVERALL
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH27
THREAD SERIESUNS
WIDTH ACROSS FLATS0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM


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