APG stocks the V75MD391, an AS568-391 blue Viton® (FKM) 75 Shore A O-Ring built to an inside diameter of 21.953 in (557.61 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 22.373 in (568.27 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.
The compound resists petroleum oils and fuels, many acids, and aromatic hydrocarbons. Viton® (FKM) delivers the industry benchmark where nitrile reaches its thermal limit and long service life in hot, chemically aggressive environments. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C).
This item meets FDA requirements for food contact, carries NSF listing, and is metal detectable for HACCP and foreign-body control programs. Typical settings include semiconductor equipment, automotive fuel systems, and aerospace.
Order part number V75MD391, sold individually. Check the compound against your process media, pressure and temperature before committing to a design.
Description -391 BLUE FKM 75D O-RING
Actual Cross Section 0.21 inch (5.33 mm)
Actual Inside Diameter 21.953 inch (557.61 mm)
Actual Outside Diameter 22.373 inch (568.27 mm)
Measurement System Imperial
Product Category O-Rings - FDA / Metal Detectable