Fuel Spout / Donkey dick seal

Does anyone make replacement seals for the cam lock fuel spouts/donkey dicks ?

If it's just a washer, if you can provide dimensions maybe someone can make some. How much are you willing to spend? $56 gets you a 6x6x1/8 Viton sheet. They'll last forever

in a pinch i made two washers from a damaged tire tube flap.. To match the thickness of the original i glued the two washers together with rubber cement .. Have accumulated an assortment of gasket-making dies fabricated from sharpened scraps of conduit and whatnot over the decades .. And one would be surprised how well a socket can punch out the bolt holes on regular gasket material

i don't know if the glue would hold without using the farm next door's vulcanizer.. Not gluing the two together probably wouldn't functionally matter, but i wanted a solid 1-piece look