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Re: [Roadsters] NGK spark plugs

To: datsun-roadsters@autox.team.net
Subject: Re: [Roadsters] NGK spark plugs
From: Durf & Sue Hyson <dhyson@charter.net>
Date: Wed, 23 Jul 2008 11:45:01 -0400
For what it's worth NGK's 4 digit numerical part number exists as a 
solution to the problem of how computers sort lists versus the way the 
spark plug part numbers are formatted. As the information coded in the 
actual spark plug part number became more complicated the P/N got longer 
and became inconsistent in it's make-up . The advent of computers 
keeping inventories  , being used to print lists , store drawings etc. 
created a problem with sorting. The simplest most efficient cure at the 
time and going forward was to assign each descriptive part number a 
simple numerical code. This got them around a computer's inability to 
sort by anything but physical position. it is something all the plug 
manufacturers have done for the same reason. Plugs will still have their 
B (long thread) P (projected nose) R (resistor) 6 (heat range) etc.part 
numbers so you can tell what they are.

Thanks,
Durf

racery@comcast.net wrote:
> Actually-
> BP6ES plugs have had the '7333' stocking number on the box of four for some 
>time now.
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