3040-01-026-4703 COLLAR,SHAFT Index 5410-01-026-4708 TIE DOWN,SHELTER

National Stock Number:
5310-01-026-4705

Federal Supply Class:
5310

National Item Identification Number:
010264705

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:
1200000119204ARMY, UNITED STATES DEPARTMENT OF THE


Techincal Specification:
BEARING SURFACE FINISH125.0 MICROINCHES
BEARING SURFACE TYPECHAMFERED
COUNTERSINK ANGLE80.0 DEGREES MINIMUM AND 100.0 DEGREES MAXIMUM NUT
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
MATERIALSTEEL COMP 4140 OVERALL
NOMINAL THREAD SIZE0.438 INCHES
NUT HEIGHT0.560 INCHES MINIMUM AND 0.590 INCHES MAXIMUM
NUT STYLEHEXAGON
SPECIAL FEATURESFLANGED ON ONE END 1.170 IN. NOM DIA,0.450 IN. NOM LG
WIDTH ACROSS FLATS0.682 INCHES MINIMUM AND 0.687 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD SERIESUNF
THREAD QUANTITY PER INCH20


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