Reddit reviews 010 Buna-N O-Ring, 70A Durometer, Black, 1/4" ID, 3/8" OD, 1/16" Width (Pack of 100)
We found 3 Reddit comments about 010 Buna-N O-Ring, 70A Durometer, Black, 1/4" ID, 3/8" OD, 1/16" Width (Pack of 100). Here are the top ones, ranked by their Reddit score.
Made of Buna-nitrile (also called Buna-N) for use with a variety of fluids and hydrocarbonsCan be used across a wide temperature range from -30 degrees F (-34 degrees C) to 250 degrees F (121 degrees C)Round in cross-section to provide a seal between cylindrical overlapping surfacesDurometer (hardness) of 70A for resistance to penetrationMeets standards defined by Aerospace Standard AS568A
If you plan on converting more than 3 pens, it's more economical to buy your own stuff.
100 o-rings, $2: http://www.amazon.com/gp/product/B000FN0V6A?redirect=true&ref_=ya_st_dp_summary
Silicone grease, 1/2 oz, $3.49: http://www.amazon.com/gp/product/B000DZFUNY?psc=1&redirect=true&ref_=ox_sc_act_title_2&smid=ATVPDKIKX0DER
For reference, Goulet pens sells 4 o-rings for $1 and 1/8 oz silicone grease for $2.95 http://www.gouletpens.com/goulet-silicone-grease/p/GPC-SiliconeGrease?pageNumber=7
These are the ones I bought.
Here are the materials I used if anyone is interested.
Pen: http://www.amazon.com/Nemosine-Singularity-Fountain-Demonstrator-NEM-SIN-01-EF/dp/B008LXW6XW/ref=sr_1_1?ie=UTF8&qid=1462826541&sr=8-1&keywords=nemosine
O-Rings: http://www.amazon.com/010-Buna-N-Ring-Durometer-Black/dp/B000FN0V6A?ie=UTF8&psc=1&redirect=true&ref_=oh_aui_detailpage_o01_s01
Silicone Grease: http://www.amazon.com/Danco-88693-Silicone-Grease/dp/B000DZFUPC?ie=UTF8&psc=1&redirect=true&ref_=od_aui_detailpages01