4330-00-797-0867 SPRING HELICAL COMP Index 3020-00-797-0878 GEAR,SPUR

National Stock Number:
5310-00-797-0877

Federal Supply Class:
5310

National Item Identification Number:
007970877

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:
919730518876U S ARMY AVIATION AND MISSILE COMMAND


Techincal Specification:
BEARING SURFACE TYPECHAMFERED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-351 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 2017 OVERALL
NOMINAL THREAD SIZE0.438 INCHES
NUT HEIGHT0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM
NUT STYLEHEXAGON
WIDTH ACROSS FLATS0.672 INCHES MINIMUM AND 0.703 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTANODIZE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD SERIESUNF
THREAD QUANTITY PER INCH20


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