5305-01-286-0877 SCREW,CLOSE TOLERANCE Index 5310-01-286-0879 NUT,PLAIN,HEXAGON

National Stock Number:
5310-01-286-0878

Federal Supply Class:
5310

National Item Identification Number:
012860878

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:
75D111330-203176301THE BOEING COMPANY


Techincal Specification:
BEARING SURFACE TYPEFLAT
COUNTERSINK ANGLE90.0 DEGREES NOMINAL BOTH ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-530,COND H FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY 172 OVERALL
NOMINAL THREAD SIZE0.190 INCHES
NUT HEIGHT0.280 INCHES NOMINAL
NUT STYLEHEXAGON
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
WIDTH ACROSS FLATS0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD SERIESUNJF
THREAD QUANTITY PER INCH32


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