7643-01-527-4238 TOPOGRAPHIC GEOSPATIAL PRODUCTS Index 7021-01-527-4240 COMPUTER SUBASSEMBLY

National Stock Number:
5310-01-527-4239

Federal Supply Class:
5310

National Item Identification Number:
015274239

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:
MS35691-72696906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
NUT HEIGHT0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
NUT STYLEHEXAGON
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE0.437 INCHES
WIDTH ACROSS FLATS0.675 INCHES MINIMUM AND 0.687 INCHES MAXIMUM
SURFACE TREATMENTPHOSPHATE OVERALL
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
THREAD SERIESUNF
THREAD QUANTITY PER INCH20


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