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Some MIL-style circular connectors with bayonet fastening are presented as "reverse bayonet". For example, Amphenol GT. The fastening direction is clockwise, just like any other bayonet connector. Why are such connectors labeled as "reverse"? What is reversed about them? enter image description here

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    \$\begingroup\$ Take a look at this video: rs-online.com/designspark/… The difference is where the pin "guide" is located. For reverse byonet it is on the static connector, for the byonet it is on the rotating part. \$\endgroup\$
    – Eugene Sh.
    Oct 1, 2021 at 20:22

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The "reverse" appears to have to do with the locking pins.

BNC Connectors

On a BNC connector, a popular bayonet-style connector, note that the male connector (bottom) has the slots on the locking ring to accept the female pins.

On the Amphenol connector you are inquiring about, the male connector has the pins on the ring instead.

Although the datasheet does not explain this, there are additional images and information which may be of use.

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    \$\begingroup\$ One benefit to the reverse bayonet is that when the connection is assembled, there aren't any exposed slots on the exterior to collect dust or water. \$\endgroup\$
    – Theodore
    Oct 1, 2021 at 20:31
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    \$\begingroup\$ @Theodore An excellent point. I can appreciate why they are favored in industry and aerospace applications. \$\endgroup\$
    – JYelton
    Oct 1, 2021 at 20:35
  • \$\begingroup\$ DUH! I feel stupid. Thank you! \$\endgroup\$ Oct 1, 2021 at 21:03

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