5310-00-996-3158 WASHER,FLAT Index 7490-00-996-3161 INK DIPPER

National Stock Number:
5310-00-996-3159

Federal Supply Class:
5310

National Item Identification Number:
009963159

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:
0N09723898230NATIONAL SECURITY AGENCY
0N12414898230NATIONAL SECURITY AGENCY


Techincal Specification:
BEARING SURFACE TYPECHAMFERED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626,H34 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY 360 OVERALL
NOMINAL THREAD SIZE0.250 INCHES
NUT HEIGHT0.093 INCHES NOMINAL
NUT STYLEHEXAGON
WIDTH ACROSS FLATS0.312 INCHES NOMINAL
SURFACE TREATMENTNICKEL OVERALL
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
THREAD SERIESUNF
THREAD QUANTITY PER INCH28


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