4520-01-294-8109 HEATER,SPACE,ELECTRIC Index 4730-01-294-8111 LOCKNUT,TUBE FITTING

National Stock Number:
5310-01-294-8110

Federal Supply Class:
5310

National Item Identification Number:
012948110

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:
M1222N1X12C20GFNZE81349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
M1222N1X12C20GFZE81349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MIL-DTL-122281349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MIL-S-122281349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
DEPARTURE FROM CITED DOCUMENTAS MODIFIED BY MERCURY FREE CLAUSE
HARDNESS RATING32.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONSAE J995,GRADE 5 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE0.750 INCHES
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 5 GRADE
NUT HEIGHT0.641 INCHES NOMINAL
NUT STYLEHEXAGON
SPECIAL FEATURESMERCURY FREE
WIDTH ACROSS FLATS1.125 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633,TYPE 2,FE/ZN 13 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTZINC AND CHROMATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2B
THREAD SERIESUNC
THREAD QUANTITY PER INCH10


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