2540-01-057-7220 HEATER,VEHICULAR,COMPARTMENT Index 5310-01-057-7222 NUT,SELF-LOCKING,BLIND RIVET

National Stock Number:
5310-01-057-7221

Federal Supply Class:
5310

National Item Identification Number:
010577221

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:
MS9361-150U583SAE INTERNATIONAL
MS9361-1581343SOCIETY OF AUTOMOTIVE ENGINEERS INC
MS9361-1596906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
BEARING SURFACE FINISH63.0 MICROINCHES
BEARING SURFACE TYPECHAMFERED
COUNTERSINK ANGLE90.0 DEGREES NOMINAL OVERALL
NUT HEIGHT0.281 INCHES NOMINAL
NUT STYLEHEXAGON
MATERIALIRON ALLOY 660 OVERALL
NOMINAL THREAD SIZE0.562 INCHES
WIDTH ACROSS FLATS0.865 INCHES MINIMUM AND 0.877 INCHES MAXIMUM
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH18
THREAD SERIESUNJF


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