5310-01-201-8875 NUT,PLAIN,HEXAGON Index 4730-01-201-8877 NUT,TUBE COUPLING

National Stock Number:
5310-01-201-8876

Federal Supply Class:
5310

National Item Identification Number:
012018876

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:
0.50013UNC2BG5T3SAN81349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
688-1864,1/2-13UNC-2B43689HUNTINGTON INGALLS INC
MIL-B-857,TY3,GR5,STY A03950NAVAL INVENTORY CONTROL POINT MECHANICSBURG


Techincal Specification:
BEARING SURFACE TYPEWASHER FACED
CRITICALITY CODE JUSTIFICATIONZZZY
HARDNESS RATING23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION688-1964,GR-5,FSC-43689 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE0.500 INCHES
NUT HEIGHT0.427 INCHES MINIMUM AND 0.448 INCHES MAXIMUM
NUT STYLEHEXAGON
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
SPECIAL FEATURESNUCLEAR LEVEL 1
WIDTH ACROSS FLATS0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
THREAD SERIESUNC
THREAD QUANTITY PER INCH13


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