1560-00-842-7212 SEAL,NOSE COWL Index 5330-00-842-7224 SEAL,NOSE COWL

National Stock Number:
5310-00-842-7221

Federal Supply Class:
5310

National Item Identification Number:
008427221

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:
AD114-0001-003094756THE BOEING COMPANY


Techincal Specification:
BEARING SURFACE TYPECHAMFERED
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-994,COMP A 1/2 HARD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY 360 OVERALL
NOMINAL THREAD SIZE0.250 INCHES
NUT HEIGHT0.193 INCHES NOMINAL
NUT STYLEHEXAGON
WIDTH ACROSS FLATS0.437 INCHES NOMINAL
SURFACE TREATMENTNICKEL OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2B
THREAD QUANTITY PER INCH28
THREAD SERIESUNF


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