5305-01-166-1706 SCREW,CLOSE TOLERANCE Index 5310-01-166-1708 NUT,SELF-LOCKING,HEXAGON

National Stock Number:
5310-01-166-1707

Federal Supply Class:
5310

National Item Identification Number:
011661707

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:
42632421450ARMY WEAPONS COMMAND ATTN AMSWE-REE-S


Techincal Specification:
BEARING SURFACE TYPEFLAT OR CHAMFERED
HARDNESS RATING78.0 ROCKWELL B MINIMUM
NUT HEIGHT0.102 INCHES MINIMUM AND 0.114 INCHES MAXIMUM
NUT STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 303 OVERALL
NOMINAL THREAD SIZE0.125 INCHES
WIDTH ACROSS FLATS0.302 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
THREAD SERIESUNC
THREAD QUANTITY PER INCH40


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