I'm trying to replace some dust seals on an old B&L scope as the old ones have cracked, but having trouble finding any to buy. Worst case I'll cut out my own bit of rubber gasket, but I thought I'd ask here first. I'm looking for the seal that goes between the eyepiece holder and the housing. I've also seen it in parts lists as a "dust seal washer." Any thoughts? I came up dry with google, amazon, microscopecentral.com, and a couple other sites. Do they perhaps have a more common name?
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