Don't spacesuits typically have some umbilical connection to the capsule life support systems? It's easy to imagine that these connectors might not be standardized between different capsules, and that sending up a new space suit might be easier than designing an adapter.
Easy to imagine but there are so many details to nail down that it's hard to do in practice.
In the words of someone in the industry who tends to be on the laconic side:
"It is not as simple as a 'common connector'. There are different pressures, mixture ratios, comm gear, seat interfaces, etc. A requirement for commonality flows requirements upstream to the suit, seat and spacecraft. "
I meant it the other way around - incompatibility is the easy-to-imagine default! In absence of some heavily-funded, top-down, NASA-driven standards-development process, no such thing as a standard spacesuit connection should be expected to exist.
Some where recently, I read something about this being an accepted thing. If you have 2 separate capsules that both use the same connector where there is a fault found with the connector, then both capsules are grounded because of the one connector.
927 is a noun at this point to me. Hell so many xkcd could be: 1319, 936, 2347. It's crazy how often referencing a xkcd is the highest signal to noise way of communicating a concept.
A group of professors liked jokes, but got tired of hearing the same ones, so they started numbering them. So instead of telling a joke or funny observation when something happened, they'd say "112" and the others would laugh. or "64", more laughter.
One day they get a new prof on their team and after a few weeks of this number, laugh, number, laugh, during a meeting, the new guy says "-149". There's dead silence for a while. The eldest prof starts laughing, "i've never heard that one!"
