A few years ago, I bought a bicycle tire pump. The first time I used it, the stem lock cracked to pieces. I had largely forgotten about it until today, when I fixed it. (Yes, I kept it that long because I intended to fix it but forgot about it after I borrowed another pump from my dad.)
Here's the old stem clamp remains:
I had intended to return it, but . . . there was too much going on in my life to worry about a tire pump at the time.
I discovered another non-functional pump around the house. This one didn't pump anymore after years of use, but it has a working stem lock!
Snip snip! Raid my tool chest for a vacuum hose adapter and BAM!
I'll find out if it works tomorrow. LOL!