Prop valve fitting size
If you can't figure it, find a real parts store and if they do not have nuts loose, or adapters for inverted flare, "get into" the universal replacement brake tube. Make certain you have inverted flare and not "bubble," and U.S. and not metric.
Find what fits, likely either 1/4 or 5/16 tube size. Then look up on the www and find the specs on that size, such as this one
Also know that most places are NOT going to have what you need, AKA a special large thread nut for 3/16 tube.
Note that these are measured on the MALE end, measuring a female thread is much more difficult
https://midlandindustries.com/section_info/BF_inverted.pdf
If you can't figure it, find a real parts store and if they do not have nuts loose, or adapters for inverted flare, "get into" the universal replacement brake tube. Make certain you have inverted flare and not "bubble," and U.S. and not metric.
Find what fits, likely either 1/4 or 5/16 tube size. Then look up on the www and find the specs on that size, such as this one
Also know that most places are NOT going to have what you need, AKA a special large thread nut for 3/16 tube.
Note that these are measured on the MALE end, measuring a female thread is much more difficult
https://midlandindustries.com/section_info/BF_inverted.pdf
