Advanced 4J JIC male 37° flare sealing plug. Features a precision-machined 37° male cone nose, standard external UN/UNF straight threads, and an integrated heavy-duty hex head. Designed to thread directly into female JIC swivel fittings or ports to provide positive metal-to-metal dry shutoff, contaminant exclusion, and burst-proof reliability in SAE J514 / ISO 8434-2 high-pressure hydraulic circuits.
The 4J Series is a critical fluid circuit termination component specifically engineered for blocking and sealing internal female ports and swivel hose ends within SAE J514 / ISO 8434-2 standard hydraulic architectures. Featuring a precision-machined JIC male 37° flare cone end paired with external UN/UNF straight threads and an integrated solid hex head, this plug threads directly into female JIC 37° swivel nuts or threaded female ports to form an impenetrable mechanical seal, preventing high-pressure fluid loss and eliminating contamination risks during testing, maintenance, or line decommissioning.
With optional zinc-nickel alloy surface treatment available to significantly extend service life, this hydraulic JIC male flare sealing plug ensures maximum longevity, structural safety, and leak-proof performance for heavy-duty industrial fluid power networks.
