H70MD122 is an AS568-122 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 1.112 in (28.24 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.318 in (33.48 mm). In service, this o-ring delivers dependable bidirectional sealing in a compact groove envelope.
The material holds up against greases and lubricants, petroleum-based oils, and water. That behavior comes from the compound itself: Buna-N (Nitrile) offers low compression set under sustained load and the most widely specified general-purpose sealing elastomer. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Exposure to ketones or polar solvents will shorten service life.
This o-ring is metal detectable for HACCP and foreign-body control programs. Common environments for this compound include automotive, agricultural equipment, and fluid power.
Order part number H70MD122, sold individually. Nominal inside diameter is listed as 1 1/8 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.
Description -122 BLACK BUNA 70D O-RING
Actual Cross Section 0.103 inch (2.62 mm)
Actual Inside Diameter 1.112 inch (28.24 mm)
Actual Outside Diameter 1.318 inch (33.48 mm)
Measurement System Imperial
Product Category O-Rings - FDA / Metal Detectable