Crimp termination, 0.187" tab width
The 173691-1 is a non-insulated female quick-disconnect receptacle from the TE Mark II series, accepting 16-20 AWG wire with a crimp termination. The tin-plated brass contact mates to a 0.187" (4.75mm) tab and is rated for free-hanging in-line mounting.
Tab width and wire range
Within the same tab-width class, the 173691-1's 0.187" (4.75mm) tab sits between the 0.248" (6.30mm) of the Utilux 1-1659250-0 and the 0.250" (6.35mm) of the Utilux 1-1627194-4 — the wire gauge range and crimp termination style are shared across these non-insulated receptacles.
