26J301 up for sale is a nomex insulator disc used for a miltiary application, covered under military NSN 5970-01-486-4233 , this gasket had special cuts and holes in it for this specific application but can also be cut into other gaskets where your need nomex material , this is 0.0145 thick this is about 12 inches by 8 inches in size , nice gasket for many uses , also see our store we add new items each week like this , thank you rwk
