5306-01-158-1156 BOLT,EXTERNALLY RELIEVED BODY Index 5330-01-158-1159 PACKING,PREFORMED

National Stock Number:
5310-01-158-1157

Federal Supply Class:
5310

National Item Identification Number:
011581157

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:
943951911862GENERAL MOTORS CORP CHEVROLET MOTOR DIV SPECIAL PRODUCTS DEPT
94395197X677GENERAL MOTORS LLC


Techincal Specification:
BEARING SURFACE TYPECHAMFERED
HARDNESS RATING85.0 ROCKWELL B MINIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONGM 286-M,FSCM 11862 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1108 OR STEEL COMP 1109 OR STEEL COMP 1110 OR STEEL COMP 1115 OVERALL
NOMINAL THREAD SIZE0.250 INCHES
NUT HEIGHT0.219 INCHES NOMINAL
NUT STYLEHEXAGON
SURFACE TREATMENTZINC OVERALL
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
THREAD SERIESUNC
THREAD QUANTITY PER INCH20


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