5305-01-285-7097 SCREW ASSEMBLY,PANEL Index 5310-01-285-7099 NUT,SELF-LOCKING,HEXAGON

National Stock Number:
5310-01-285-7098

Federal Supply Class:
5310

National Item Identification Number:
012857098

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:
MS9553-1296906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
THREAD SERIESUNJ
NOMINAL THREAD SIZE1.0625 INCHES
THREAD QUANTITY PER INCH12
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL COMP 304 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5639 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NUT STYLEHEXAGON
NUT HEIGHT0.438 INCHES NOMINAL
WIDTH ACROSS FLATS1.364 INCHES MINIMUM AND
1.377 INCHES MAXIMUM
BEARING SURFACE TYPECHAMFERED
NUT COUNTERBORE DEPTH0.049 INCHES MINIMUM AND
0.059 INCHES MAXIMUM NUT
COUNTERBORE DIAMETER1.290 INCHES MINIMUM AND
1.300 INCHES MAXIMUM NUT
COUNTERSINK ANGLE110.0 DEGREES NOMINAL NUT
BEARING SURFACE FINISH125.0 MICROINCHES
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCEMS9553-12


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