5310-01-587-5876 WASHER,KEY Index 5310-01-588-2253 WASHER,FLAT

National Stock Number:
5310-01-587-5857

Federal Supply Class:
5310

National Item Identification Number:
015875857

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:
12759-012850Y3H3FASTENAL COMPANY
364540Y3H3FASTENAL COMPANY
94895A81039428MCMASTER-CARR SUPPLY CO


Techincal Specification:
WIDTH ACROSS FLATS0.500 INCHES NOMINAL
BEARING SURFACE TYPEFLAT OR CHAMFERED
PART NAME ASSIGNED BY CONTROLLING AGENCYNUT, HEXAGON
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE0.312 INCHES
NUT HEIGHT0.266 INCHES NOMINAL
NUT STYLEHEXAGON
SPECIAL FEATURESMATERIAL: GRADE 8 STEEL; SURFACE TREATMENT: ZINC YELLOW-CHROMATE PLATED
SURFACE TREATMENTCHROMATE ZINC OVERALL
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH24
THREAD SERIESUNF


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