2815-00-516-7441 ENGINE,DIESEL Index 2815-00-516-7450 ENGINE,DIESEL

National Stock Number:
5310-00-516-7445

Federal Supply Class:
5310

National Item Identification Number:
005167445

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:
516744519204ARMY, UNITED STATES DEPARTMENT OF THE


Techincal Specification:
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
HOLE CONFIGURATION STYLECONFIGURATION A
HOLE NOMINAL THREAD DIAMETER0.250 INCHES
HOLE TYPE AND QUANTITY1 TAPPED
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A322 ASSN STD ALL MATERIAL RESPONSES OR ASTM A331 ASSN STD ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 4140 OR STEEL COMP 8640 OVERALL
NOMINAL THREAD SIZE2.250 INCHES
NUT HEIGHT1.000 INCHES NOMINAL
NUT STYLEHEXAGON
WIDTH ACROSS FLATS3.484 INCHES MINIMUM AND 3.516 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH12
THREAD SERIESUNC


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