4730-00-227-7946 NIPPLE,PIPE Index 4730-00-227-7952 CROSS,BOSS

National Stock Number:
5310-00-227-7951

Federal Supply Class:
5310

National Item Identification Number:
002277951

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:
FFN83681348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
THREAD SERIESUNF
NOMINAL THREAD SIZE0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL COMP 1006 OR
STEEL COMP 1008 OR
STEEL COMP 1010 OR
STEEL COMP 1012 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-W-409 FED SPEC ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENTCADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NUT STYLEHEXAGON
NUT HEIGHT0.218 INCHES MINIMUM AND
0.250 INCHES MAXIMUM
WIDTH ACROSS FLATS0.488 INCHES MINIMUM AND
0.500 INCHES MAXIMUM
BEARING SURFACE TYPECHAMFERED OR
WASHER FACED
NONDEFINITIVE SPEC/STD DATA2 TYPE AND
11 STYLE
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY MATERIAL
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCEFFN836


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