5310-00-550-1469 NUT,PLAIN,HEXAGON Index 9905-00-550-1478 PLATE,INSTRUCTION

National Stock Number:
5310-00-550-1470

Federal Supply Class:
5310

National Item Identification Number:
005501470

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:
B18.6.380204AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED
FF-N-83681348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
FF-N-836 TY2ST1380244GENERAL SERVICES ADMINISTRATION FEDERAL SUPPLY SERVICE


Techincal Specification:
BEARING SURFACE TYPEFLAT
HARDNESS RATING69.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE0.312 INCHES
NUT HEIGHT0.218 INCHES NOMINAL
NUT STYLEHEXAGON
WIDTH ACROSS FLATS0.562 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-325,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTZINC OVERALL
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH24
THREAD SERIESUNF


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