I’m sure there’s a term for this, but it escapes me at the moment. What do you call the feature on a cable/wire/hose that increases the OD so that it cannot pull through a hole which is large enough for the cable/wire/hose to pass through if it were not for this feature?
feature X [ ]
____ []
-------| X |---------------------- cable/wire/hose
-------||----------------------
[ ]
[ ]
barrier w/ thru hole
please excuse the really, really crappy illustration.