Oy. Haven't heard of that stuff for quite awhile. I think you can get it from Parker, and maybe Apple Rubber, contact their custom compounding shops. You could also contact EG&G Wright Components, I used to buy a solenoid valve from them with an AFE-411 seat; they may be able to point you towards a supplier. Moog also supplies similar stuff, and probably mixes their own rubber.
Ah, yes. A quick Google search opens up PSI systems' website (they make prop tanks for the fluids you are probably interested in),
Thought so. Have you talked to the customer about using an EPDM compound? Unless you are sealing Aerozine-50, or one of the methyl hydrazines, EPDM seals quite nicely. There is a book out there called _Hydrazine and Its Derivatives_ by Eckhardt Schmidt, of the old Rocket Research Co. where I worked too many years. I think it was published by McGraw-Hill? The book is thick, but has a lot of good info. on hydrazine compatibility with various seal and container materials. Parker may also be able to point you to some of their proprietary blends. But, as I recall, good old Parker compund E515-80 was bulletproof as a hydrazine seal, at least for static seals.
Finally, if you are locked into the AFE411 due to spec. compliance, make sure the formulator is careful about the silicone/silica content. Depending on who this thruster valve is for it may or may not be important, AFE411 can put a lot of dissolved silicon/silicone into solution in the 'zine, which can go downstream and poison catalysts, or plug small fluid delivery tubes.
Wow, just checked amazon.com - $440! You may want to check with the librarian at RRC, now Aerojet, and see if they can loan you a copy.
