A fiber optic connector, comprising: a connector body comprising a ferrule retaining portion, a pusher engagement portion, and a body cable passage extending from a cable entry end of the connector body to the ferrule retaining portion of the connector body along a longitudinal axis extending through the pusher engagement portion of the connector body and the ferrule retaining portion of the connector body; a ferrule assembly comprising an optical fiber bore, wherein the ferrule assembly is structurally configured to be retained by the ferrule retaining portion of the connector body with the optical fiber bore of the ferrule assembly in alignment with, or offset from and parallel to, the longitudinal axis of the connector body; a pusher comprising a pusher cable passage, wherein the pusher is structurally configured to axially engage the pusher engagement portion of the connector body with the pusher cable passage in alignment with the body cable passage of the connector body; and characterized by a collapsing cantilevered gasket comprising a gasket cable passage, wherein the gasket cable passage at a body-engagement end of the collapsing cantilevered gasket is larger than the gasket cable passage at a pusher-engagement end of the collapsing cantilevered gasket; an anchored portion formed about the gasket cable passage at the body-engagement end of the gasket, and a cantilevered portion formed about the gasket cable passage at the pusher-engagement end of the gasket, wherein the pusher-engagement end of the gasket is configured to translate axially underneath the body-engagement end of the gasket; wherein the body-engagement end of the gasket extends laterally outward relative to the pusher-engagement end of the gasket such that the collapsing cantilevered gasket has a greater cross-sectional profile along the body-engagement end of the gasket than the pusher-engagement end, wherein the collapsing cantilevered gasket is structurally configured to form an axially compressed sealing interface at the body engagement end of the gasket about the body cable passage, between the cable entry end of the connector body and the pusher, and an omnidirectionally compressed sealing interface at the pusher-engagement end of the gasket between the cantilevered portion of the gasket and an outer surface of a cable passing through the gasket cable passage of the gasket. a connector body comprising a ferrule retaining portion, a pusher engagement portion, and a body cable passage extending from a cable entry end of the connector body to the ferrule retaining portion of the connector body along a longitudinal axis extending through the pusher engagement portion of the connector body and the ferrule retaining portion of the connector body; a ferrule assembly comprising an optical fiber bore, wherein the ferrule assembly is structurally configured to be retained by the ferrule retaining portion of the connector body with the optical fiber bore of the ferrule assembly in alignment with, or offset from and parallel to, the longitudinal axis of the connector body; a pusher comprising a pusher cable passage, wherein the pusher is structurally configured to axially engage the pusher engagement portion of the connector body with the pusher cable passage in alignment with the body cable passage of the connector body; and characterized by a collapsing cantilevered gasket comprising a gasket cable passage, wherein the gasket cable passage at a body-engagement end of the collapsing cantilevered gasket is larger than the gasket cable passage at a pusher-engagement end of the collapsing cantilevered gasket; an anchored portion formed about the gasket cable passage at the body-engagement end of the gasket, and a cantilevered portion formed about the gasket cable passage at the pusher-engagement end of the gasket, wherein the pusher-engagement end of the gasket is configured to translate axially underneath the body-engagement end of the gasket; wherein the body-engagement end of the gasket extends laterally outward relative to the pusher-engagement end of the gasket such that the collapsing cantilevered gasket has a greater cross-sectional profile along the body-engagement end of the gasket than the pusher-engagement end, wherein the collapsing cantilevered gasket is structurally configured to form an axially compressed sealing interface at the body engagement end of the gasket about the body cable passage, between the cable entry end of the connector body and the pusher, and an omnidirectionally compressed sealing interface at the pusher-engagement end of the gasket between the cantilevered portion of the gasket and an outer surface of a cable passing through the gasket cable passage of the gasket.