4540-01-244-7562 HEATING ELEMENT,ELECTRICAL,NONIMMERSION TYPE Index 5310-01-244-7564 NUT,PLAIN,HEXAGON

National Stock Number:
5310-01-244-7563

Federal Supply Class:
5310

National Item Identification Number:
012447563

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:
0.50013UNC2BT1G400NSA/BAA81349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
200-6226444/PC.1880064NAVAL SHIP SYSTEMS COMMAND
MIL-B-85781349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
TY3,1/2-13UNC-2B81349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
THREAD SERIESUNC
NOMINAL THREAD SIZE0.500 INCHES
THREAD QUANTITY PER INCH13
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
MATERIALNICKEL ALLOY OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NUT STYLEHEXAGON
NUT HEIGHT0.427 INCHES MINIMUM AND
0.448 INCHES MAXIMUM
WIDTH ACROSS FLATS0.736 INCHES MINIMUM AND
0.750 INCHES MAXIMUM
BEARING SURFACE TYPECHAMFERED
NUT COUNTERBORE DEPTH0.016 INCHES NOMINAL BOTH ENDS
DEPARTURE FROM CITED DOCUMENTMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
CRITICALITY CODE JUSTIFICATIONZZZW
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCEMIL-B-857


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