The FEM JIC Cap Nut is a precision-machined fitting designed to cap and seal female JIC (Joint Industry Council) hydraulic connections. Manufactured to SAE J514 standards, this cap nut offers a secure, leak-resistant closure to protect against dirt, debris, and damage when the fitting is not in use. Features: Compatible with SAE 37° flare (JIC) female fittings Durable steel or stainless steel construction (depending on spec) Corrosion-resistant plating for extended service life Provides a tight seal to prevent fluid leaks and contamination Ideal for use in hydraulic systems, maintenance, and equipment storage Applications:Perfect for hydraulic hose assemblies, fluid transfer systems, mobile equipment, and industrial machinery where unused ports or lines must be safely capped off.