Need to buy a nib

[publius]

This is really a "repair parts" type of question, but I think I have a better chance of getting it answered here. The short & sweet of it is, I need a replacement for the item shown in the photograph below.

http://ura.caldc.com/wolfram/sorrento_nib.jpg

This is one of those "Iridium Point Germany" nib-and-feed assemblies. I'm sure that there are only a few standard sizes of these, but it came out of a commercially-purchased pen, & the websites mentioned in this area as sources for kit-pen parts seem to identify them by what kits they fit. I have made a series of measurements, in the hope that one of the kind people on here will be able to identify the one I need. The usual remarks about significant figures in measurement apply, particularly as I had to "eyeball" a couple of them when measuring with my inch-scale dial caliper.

 

Diameters

barrel of the section part, between the flange & the threads, 0.268 inch or 6.8 mm

the flange, 0.284 in / 7.2 mm

over the threads, 0.247 in / 7.0 mm

 

Length

of everything behind the nib, 0.88 in / 22 mm

of the flange between the nib & the barrel, 0.022 in / 0.56 mm

of the threaded section, 0.186 in / 4.7 mm

 

The solid-colour gold-plated nib is about 0.7 in (18 mm) long, 0.28 in (7 mm) broad at its widest, & marked "F".

 

I bought something called an "Aldo Domani Sorrento" at an office-supply store. This is a set containing a small fountain pen & a ball-point. After a little work on the nib, the pen made a perfectly acceptable writing instrument, although it is too small to accept anything other than an international cartridge. Unfortunately, I managed to drop it on its tip & bend the tines backward. Although I was able to smooth them into place with my finger & finish writing a few lines, the nib unit must be basically a loss, & as far as I can tell that means replacing the whole unit. I wrote to the distributor, but they want $18.95 for a new one. The pen itself cost less than that ( the set was $20, & allowing $7.50 for the BP leaves $12.50 for the FP), & considering retail economics, the part can't have cost them more than $1 or so. I see similar units (they seem to be mostly 2-tone, which is OK by me) available from the kit-pen sources at $2.50 or so retail, which seems much more reasonable, but I need to know which one to buy.

[richardandtracy]

The 'Classic' pen kit has a section diameter tapering from 8mm at the nib to 9mm at the shoulder by the thread. The thread is 8.2mm diameter.

 

Sorry that it only eliminates one kit.

 

Regards,

 

Richard.