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Self-Sealing Fasteners
Self-sealing fasteners are threaded or non-threaded aerospace hardware incorporating integral sealing elements — typically elastomeric O-rings, pre-applied sealant compounds, or captive gaskets — that prevent fluid, fuel or gas ingress and egress through the fastener hole without requiring separate sealant application, meeting MIL-SPEC and NAS sealing performance requirements across metallic and composite airframe structures.
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