H70MD461 is an AS568-461 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 15.955 in (405.26 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 16.505 in (419.23 mm). In service, this o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
Expect good resistance to many alcohols, hydraulic fluids, and water. Buna-N (Nitrile) offers strong abrasion and tear resistance, low compression set under sustained load. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It is not the right choice where strong acids or ozone and direct sunlight are present.
The compound is metal detectable for HACCP and foreign-body control programs. Maintenance and OEM teams specify it across hydraulic and pneumatic systems, automotive, and general industrial maintenance.
Order part number H70MD461, sold individually. Check the compound against your process media, pressure and temperature before committing to a design.
Description -461 BLACK BUNA 70D O-RING
Actual Cross Section 0.275 inch (6.99 mm)
Actual Inside Diameter 15.955 inch (405.26 mm)
Actual Outside Diameter 16.505 inch (419.23 mm)
Measurement System Imperial
Product Category O-Rings - FDA / Metal Detectable