Hydraulic SAE Straight Thread Boss o-rings are used at the base of straight threads typically used on plugs or adapters for ports. Those listed in this category are made of Silicone material for those high heat or food grade applications. Check a chemical compatibility chart.
Orders of $15 or more SHIP FREE first class USPS in the USA
Orders of $50 or more SHIP FREE Priority 2-3 day in the USA