4730-00-804-7917 REDUCER,BOSS Index 5305-00-804-7925 SCREW,MACHINE

National Stock Number:
5310-00-804-7918

Federal Supply Class:
5310

National Item Identification Number:
008047918

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:
57435-71002734LOCKHEED MARTIN CORPORATION
FFN83681348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
BEARING SURFACE TYPECHAMFERED
HARDNESS RATING32.0 ROCKWELL B MINIMUM AND 69.0 ROCKWELL B MAXIMUM
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE0.375 INCHES
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 13 STYLE AND B GRADE
NUT HEIGHT0.239 INCHES MINIMUM AND 0.257 INCHES MAXIMUM
NUT STYLEHEXAGON
WIDTH ACROSS FLATS0.607 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH16
THREAD SERIESUNC


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