
FMT's patented Big Bore SAE O-Ring components are a proprietary product line manufactured entirely in-house — couplings, adapters, nipples, suction pipes, elbows, flange adapters, and half couplings in both steel and stainless steel. Designed for hydraulic and pneumatic pump applications, these fittings have saved customers thousands of dollars on pump repairs. Complete inventory of the most common components is maintained in-stock; custom sizes and configurations available from FMT's on-site CNC facility. Browse the full catalog below.