5305-00-840-6050 SETSCREW Index 4710-00-840-6087 PIPE,METALLIC

National Stock Number:
5310-00-840-6051

Federal Supply Class:
5310

National Item Identification Number:
008406051

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:
MS9356-1096906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
THREAD SERIESUNJF
NOMINAL THREAD SIZE0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
MATERIALIRON ALLOY 660 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NUT STYLEHEXAGON
NUT HEIGHT0.209 INCHES MINIMUM AND
0.229 INCHES MAXIMUM
WIDTH ACROSS FLATS0.430 INCHES MINIMUM AND
0.439 INCHES MAXIMUM
BEARING SURFACE TYPECHAMFERED OR
WASHER FACED
COUNTERSINK ANGLE85.0 DEGREES MINIMUM AND
95.0 DEGREES MAXIMUM NUT
BEARING SURFACE FINISH63.0 MICROINCHES
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCEMS9356-10


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