5325-00-659-4657 RING,RETAINING Index 5310-00-659-4660 WASHER,SHOULDERED

National Stock Number:
5310-00-659-4658

Federal Supply Class:
5310

National Item Identification Number:
006594658

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:
207A416P103538LOCKHEED MARTIN CORPORATION
207A416P124446GENERAL ELECTRIC COMPANY


Techincal Specification:
BEARING SURFACE FINISH125.0 MICROINCHES
BEARING SURFACE TYPECHAMFERED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,TYPE A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 416 OVERALL
NOMINAL THREAD SIZE0.250 INCHES
NUT STYLEHEXAGON
NUT HEIGHT1.094 INCHES NOMINAL
WIDTH ACROSS FLATS1.875 INCHES NOMINAL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2B
THREAD QUANTITY PER INCH7
THREAD SERIESUNC


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