The 031-71035: The 500 mating cycles mean it holds up to regular reconnection in patch panels or test setups without the centre contact wearing out.
NRND — Plan for a Last-Time Buy or Alternative
That means it is still available for existing production runs and repair stock, but the manufacturer has flagged it for eventual phase-out. New projects should evaluate a current-production 75 Ohm BNC plug from the same series — the base product number 031-71 covers the family, and a direct parametric match (75 Ohm, crimp, RG-59 cable group) is the starting point for a cross-reference. For BOM lines already using this part, the NRND status means you should secure enough inventory for the remaining production lifecycle or identify an approved alternative before the last-time-buy window closes.
Crimp Termination and Cable Fit
The cable group list (RG-59 Plenum, Belden 1506, 82108, 9104) defines the exact dielectric diameter and braid coverage this plug is dimensioned for. Using a cable outside this group risks an impedance mismatch at the crimp interface or a loose ferrule grip. The bayonet lock secures the pair without threads, which is faster in the field but less vibration-resistant than a threaded interface.