Part number H70MD311 is an AS568-311 black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 0.537 in (13.64 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 0.957 in (24.31 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
Buna-N (Nitrile) is specified for the most widely specified general-purpose sealing elastomer and an economical choice for high-volume maintenance programs. Expect good resistance to hydraulic fluids, many alcohols, and greases and lubricants. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service.
This o-ring is metal detectable for HACCP and foreign-body control programs. Common environments for this compound include hydraulic and pneumatic systems, agricultural equipment, and general industrial maintenance.
This item is sold individually under part number H70MD311. Check the compound against your process media, pressure and temperature before committing to a design.
Description -311 BLACK BUNA 70D O-RING
Actual Cross Section 0.21 inch (5.33 mm)
Actual Inside Diameter 0.537 inch (13.64 mm)
Actual Outside Diameter 0.957 inch (24.31 mm)
Measurement System Imperial
Product Category O-Rings - FDA / Metal Detectable