For those looking for papers:
R. L. Jesch, "Repeatability of SMA coaxial connectors," in IEEE Transactions on Instrumentation and Measurement, vol. IM-25, no. 4, pp. 314-320, Dec. 1976, doi: 10.1109/TIM.1976.6312234.
At least 50 mate/demate cycles
D. Bergfried and H. Fischer, "Insertion-Loss Repeatability versus Life of Some Coaxial Connectors," in IEEE Transactions on Instrumentation and Measurement, vol. 19, no. 4, pp. 349-353, Nov. 1970, doi: 10.1109/TIM.1970.4313926.
10,000 cycles for 14mm GPC, 7mm GPC, N, SMA (gold plated ss, and plain SS)
There's also a post by Rich NE1EE last may giving some data from Keysight
/g/nanovna-users/message/28062
