Roller for sliding glass door

A home owner from Valrico, Florida 33596 says:
Do you carry a single wheel roller for a glass sliding door, has an inscription on the side that reads "ALCAN 463997C". Thanks for your support.
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Donna from SWISCO responded:
Take a look at our catalog results for ALCAN. We would be happy to research this for you if you cannot identify the needed hardware on our site, please send us detailed photos with measurements.
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Mike from SWISCO responded:
I just happened to come across this discussion today while searching for a similar ALCAN part number. Check your number again but I believe it is 4639970 ('0' instead of a 'C' at the end). If that is so, you probably are looking for the 81-133 patio glass door roller.

Also, see thisdiscussion regarding the ALCAN part number 4639970.
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