The recepticals for the camlocks on the access bay panels are found here:
https://catalog.howmetfasteners.com/...ulated/26r16-1
https://www.clarendonsf.com/products...ers/26r16-1fgv
https://www.boeingdistribution.com/p...6R16-1/26R16-1
I bought some a few years ago, and can't remember exactly who I bought them from.
They have the same p/n as the cessna parts manual 26R16-1, and I would not/did not hesitate to install them on my aircraft.
the camlock fasteners are different, and can be found at Aircraft spruce:
27S3-3
27S3-5
Depth / length are the deciding factor.
As far as the gasket, if you are looking for a quick, non expensive, water proof seal.............
Go to your favorite pool store, and in the "aviation dept", find a tube of Pool and Spa lube. I use a finger and spread down into the panel spaces, a fine film on the gasket, and around the camlocks themselves. It is sticky, but cleans up quickly with a rag in mineral spirits. I have never had a water issue on mine.
Regards,
Randy
OH, also.... Hi Capt Erwin. If you get down Tucson way, give me a shout.