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These nicely finished SO-239 UHF or N amateur radio nut locking washers are sometimes difficult to find especially in this higher quality. A nice price too that will fit your UHF bulkhead couplers, SO-239 and even the “N” connectors used in ham radio applications. A RARE find! A new heavier duty washer with the same diameter as before.
These are the nickel plated star or tooth lock washers for SO-239 UHF bulkhead and chassis mount connectors. Corrosion Resistance 410 resists dry atmosphere, fresh water, mild alkalis and acids, food, steam and hot gases. Internal tooth lock washers are for locking tension adding resistance to prevent coming loose. Internal star or tooth lock washers are used to lock assemblies underneath the head of the nut, and are often chosen over external tooth lock washers for their smooth finished exterior edge.
Note: Last photo shows a typical use for this washer....
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