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Steel Plug O-Ring Boss
Steel Plug O-Ring Boss fittings are used to seal off unused or service ports in hydraulic cylinders and related components. Made from durable steel, these threaded plugs fit into O-ring boss (ORB) ports and use a compressed O-ring to create a secure, leak-free seal—relying on face sealing rather than thread sealing. Ideal for high-pressure systems where reliability is critical. FASTSHIP available on select sizes—order by 12:00 CST for same-day shipping. Can’t find the fit you need? Call for assistance. Demolish Downtime with fittings that seal it right.
