Protective dust cover for SMA-female  and RP-SMA female connectors..  

Two versions offered:

1. Nickel-plated w/ O-ring for waterproofing and dust-proofing:  Part# DUSTCAPN
2. Rubber version (Red): Dust cover & prevents water intrusion.  Part# DUSTCAPR

The nickel-plated version comes with an interior  O-ring to completely seal out water and dust intrusion.  The nickel-plating is a robust corrosion protection that prevents corrosive action from rust and a range of other mechanisms.

The red rubber dustcap is a great economical solution for preventing intrusion of dust and water.

Diameter of the dustcover:  Interior diameter is 6.5mm hole.  

Both the nickel and rubber dustcaps are compliant with RoHs 3.

See also:  Versions with a chain to attach to the cable or antenna.