11B510 up for sale is a set of carbon seals or packings this is a set of 3 pieces of carbon that form a seal for a steam turbine assembly , this was marked NSN 2825-01-219-1802 p/n 11184 this when put together measures around 2 1/4 OD x 1 5/8 ID x 0.423 thick, nice seal we do not know exactly what this fits but it appears its related to a steam turbine, new 2003, this outer diameter has a full radius groove and the sides are marked to show assembly order, this appears to be made by Siemens Delaval turbomachinery inc. buyer to pay calculated shipping and packing to your locations, see our store for more stuff like this, Thank you RWK.