Mil Spec ZZR765 (AA595 ) is a very common specification for Oil resistant silicone suited for most military applications This mil spec rubber is very versatile, offers a suitable balance of oil resistance, stability, strength, and great flame resistance Applications Military Grade silicone rubber is certified to MIL Spec ZZR 765 (AA595 )Iso , fda 21cfr, nsf51, 3a, uspvi, milspec (zzr765, aa 595, ams 3304, astmd00 ge) Silicone Rubber Extrusion Applications Vanguard's custom rubber seals and gaskets are used in many applications and industries throughout the worldZZR765CL1BGR50 ZZR765CL1BGR50 Rubber Sheet, solid Material Rubber, silicone, ZZR765, grade 50 Length feet minimum and 100 feet maximum Minimum Tensile Strength 700 pounds per square inch 595 Solid Silicone Rubber Sheet 36 X 36 0 375 Thick Federal specification zz-r-765