5305-01-057-4279 SCREW,CLOSE TOLERANCE Index 5310-01-057-4283 NUT,SELF-LOCKING,BLIND RIVET

National Stock Number:
5310-01-057-4281

Federal Supply Class:
5310

National Item Identification Number:
010574281

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:
NAS509-10C80205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE


Techincal Specification:
DRILLED HOLE DIAMETER0.045 INCHES MINIMUM AND 0.050 INCHES MAXIMUM
BEARING SURFACE FINISH125.0 MICROINCHES
BEARING SURFACE TYPECHAMFERED
COUNTERSINK ANGLE110.0 DEGREES NOMINAL NUT
HOLE CONFIGURATION STYLECONFIGURATION B
HOLE TYPE AND QUANTITY3 DRILLED
NUT HEIGHT0.406 INCHES NOMINAL
NUT STYLEHEXAGON
MATERIALIRON ALLOY 660 OVERALL
NOMINAL THREAD SIZE0.625 INCHES
SPECIFICATION/STANDARD DATA80205-NAS509 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
WIDTH ACROSS FLATS0.986 INCHES MINIMUM AND 1.002 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH18
THREAD SERIESUNJF


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