5306-00-680-6399 BOLT,CLOSE TOLERANCE Index 5305-00-680-6408 SETSCREW

National Stock Number:
5310-00-680-6403

Federal Supply Class:
5310

National Item Identification Number:
006806403

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:
1300333-355972HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS
385-12780009TEKTRONIX, INC.


Techincal Specification:
BEARING SURFACE TYPEFLAT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-268 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 2024 OVERALL
NOMINAL THREAD SIZE0.138 INCHES
NUT HEIGHT0.271 INCHES MINIMUM AND 0.281 INCHES MAXIMUM
NUT STYLEHEXAGON
WIDTH ACROSS FLATS0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
SURFACE TREATMENTANODIZE OVERALL
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD SERIESUNC
THREAD QUANTITY PER INCH32


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